As stated countless times, passenger numbers might be back but generally they are travelling on cheaper tickets, so there’s still a gap to plug somehow. Arguably this could be done with extra subsidy, but that’s not how the government sees it.
Actually the split across non season tickets isn't that different from what it was, with actual numbers being comparable to 2018/19.
The big difference is season tickets, which whilst a lot of money in one go are often quite a reasonably cheap way to use the railways if you use then 5 days a week (if you can use them more than that then they become very good value).
However, as I said at the time, actually WFH should enable people to be less reliant on car ownership. The average cost of owning a car (including purchase costs) is £3,500 per year. That's £16 per day if you only use it for work travel, however if you go to the office 3 days a week then that cost increases to £22.70 (allowong for a pro rata on fuel use).
For a single person they may well still be able to justify the extra cost, but for a couple who may both only be going in at the same time one or two days a week, the extra cost becomes quite a lot more for one or two days of benefit. As the weekly cost would be £136 compared to £75 for owning one car for use for 4 days a week, leaving £61 for travel for one or two days of travel (depending on if they wanted to WFH at the same time or tried not to).
The cost difference gets even greater if the WFH rate is higher (for instance going in 2 days a week).
Whilst cost isn't everything, and it's possible to have car ownership costs quite a bit lower than this (which closes the gap) it's likely something which I doubt many have a true handle on the actual costs of their car ownership.