5 tests in modern era are even tougher as they are condensed and almost back to back.
Back in the day a tour of England would last forever, there would be large gaps between tests, lots of warm up matches, and even tour matches between games to fine tune the line up and get players used to different conditions. There is just no time for recovery in the type of schedule we had in this series.
Wisden shared an interesting observation. Broad took part in a 5 test series that lasted almost the same length as this series and bowled more overs than Siraj in that series. Anderson has bowled more overs in many series. If you look carefully You see many Anderson, Couple of cummins. Bumrah once which was technically 4+1 series. It is not uncommon one bowler bowling a lot of overs in a 5 test series.
After 2010
Anderson 223 overs 2017 Ashes
Anderson 213 overs 2010 Ashes
Cummins 211 vovers 2019 Ashes
Anderson 205 overs 2013 Ashes
Anderson 204 overs 2021 Patudi Trophy
Anderson 199 overs 2021 Patudi Trophy
Cummins 197 overs 2017 Ashes
Broad 195 overs 2017 Ashes
Hazlewood 190 overs 2017 Ashes
Anderson 190 oers 2013 Ashes
Siddle 189 overs 2013 Ashes
Mitchel Johnson 188 overs 2013 Ashes
Bumrah 187 overs 2021 Patudi Trophy
Broad 187 oves 2023 Ashes
SIraj 185 overs 2025 AT Trophy