You're ranting and raving but at the same time you don't seem to know very much.
Leaving Man City aside, have you seen the gap Arteta has created between Arsenal and the rest of the PL? Why all the negativity? You cannot legitimately compare Arsenal with City who have had the best of everything, yet here you are in April at the top of the league with about 13 settled first team players having only gotten rid of the deadwood 9 months ago.
The lack of ambition statement is also pretty ridiculous. Arteta has been backed in every window despite limited outgoings and a lack of Champions League income. It has been made clear through various media reports that there is a multi-year plan in place which is currently running ahead of schedule.
There have been some hits and misses in the transfer window but when you consider Arsenal have not yet spent more than £50m on a single player that is to be expected. A lot of the purchases namely Ramsdale, Trossard, White, Tomiyasu, Odegaard, Zinchenko and Jesus have been instrumental in Arsenal's sharp rise from 5th to 1st. Viera, Kiwior and others still have time on their side. The only flop really may be Lokonga who was captain of Anderlecht before he arrived but just couldn't fit into the system.
The Premier League is getting ridiculously competitive and Man City have created an unfortunate dynamic where in order to win in May you need to be close to perfect throughout the entire year. However putting Arteta's achievement into perspective he has done a very good job for you and i think you'll find most PL clubs are very envious of what Arsenal have achieved in a short space of time.
Most clubs are envious of what Arsenal have created in a short space of time?

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which clubs are these why dont you name them?
Also you talk about short space of time? Arteta has been in charge for 3.5 years, where would you expect a club to be after 3 half years?
He took over a club which finished 5th the previous season and got to a europa league final, so fans need to stop making out as though hes taken over some sort of relegation threatened team like Eddie howe as at newcastle.
When Arteta took over Arsenal were 6 points of CL spots, so not exactly miles off the pace. Spending 500 M+ on 20+ players and that supposedly a short space of time

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Also the lack of Ambition ok lets go back to Artetas 1st full season in charge and Edu was asked what the clubs target was an Edu didnt provided any targets for the league etc.. so how exactly is ambitious.
Then we got to the last season, after two 8th places finishes the club target was to get back into europe which you can do finishing 7th (Confrence league qaulification) so how exactly is that Ambition? the club bottled top 4 and the excuse was oh well we werent expected to finish top 4. Again loser mentality.
Then this season after 3.5 years in charge at a big club and the target is top 4? Any big club would be expecting to challenge for the league after 3.5 years of a manager being in place, so agin quite with this short space of time nonsense
According to the Media there is a project plan in place?

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Has any one seen this so called project plan? so what year on the plan are we suppose to win the PL or CL? And if we dont is anyone going to be made accountable? No they wont. Again just another PR spun load of **, So the club can hide behind a so called plan if they fail.
Next season will be the same if club fails, "oh according to project plan we were exepected to win"
Ask most United Fans etc.. if they sign 2 midfields and a world class striker if they are going to be waiting 3.5 years before they challenge for the league. Most big clubs expected returns after 3 years if a manager is still in charge.
Lakonga, Tavares, tomyassu (made of glass), Vieria have all been major flops, most of these mediocre transfers have meant Arsenal have or will have to use further funds to correct these mistakes, which means less money to spend on priority signings.
A lot more holes in sqaud should have been fixed now, but instead club has chosed to retain mediocre players like holding, Elneny, Nketiah etc.. in the sqaud rather then bring in better players.
Also i have mentioned Previously that Arsenal will never have a sqaud like Citys, no one will thats the reality of football, and thats always been the case in PL over different periods, there were times where United and Arsenal had miles better sqauds then the rest of the league.
How did liverpool manage to compete with Man city, they got their transfers spot over a 3 or 4 year period and they didnt have to break the bank initially. Thats the difference between someone like Michael edwards and Someone like Edu.
in the last TW Arsenal were after caicedo and refused to put in a 3rd bid because they didnt want to upset Brighton, where is the ambition there? are Arsenal trying to win a title or make friends.
Do you think Brighton care about relationships with clubs when they sign the best players from small foriegn clubs.
complete lack of Ambition, if the club wanted to push the boat out for certain players they would, instread they would keep penny pinching.
All this hype because a manager after 3.5 years is challenging for a title. Something which would be a bare minimum at Chelsea, United, Liverpool or Man city.