Dft have updated their usage spreadsheet since covid
Column G includes Elizabeth line
Column H excludes it
some recent examples (vs pre-covid)
Wed 22 July 111% 100%
Thu 23 July 111% 100%
Fri 24 July 120% 108%
Sat 25 July 121% 108%
Sun 26 July 121% 109%
Mon 27 July 122% 109%
Tue 28 July 123% 110%
Wed 29 July 113% 102%
Daily usage of selected domestic transport by mode for Great Britain.
www.gov.uk
So the idea that operators should still be running thinned out covid timetables seems rather thin now, and whilst some commuter operators might be down on Fridays, some others must be well up if getting averages upto 110% (or 123% with Elizabeth line)
Suggests to me that some areas must be 20%+ up, not that I can think of a single operator that has a 20% bigger fleet than 7 years ago