Yeah I don't know how they plan to shaft business users with that. It's so slow.
I noticed recently that Microsoft relented and soon starts introducing CoPilot features into old outlook (or 'real' or 'full' outlook as people are calling it at work). Previously it was coupled to 'new' outlook only to promote adoption. But it really sees a lot of pushback from users. I hope this will continue into not canning the real outlook at all.
Microsoft are always pushing 'more change management' as a 'solution' but some changes are simply not good and it's normal for users to resist. If anything they push too much (like turning on features by default, and sending reminders that you have not used feature xyz enough last week through Viva Insights)
And the skullduggery they're doing with the consumer windows mail migration (pulling the user's email into their cloud without making this very clear) is totally out of line IMO.
Personally I don't even hate the web version so much. I use it daily because Microsoft never made a native outlook for my platform anyway. But I'm not a heavy user of mail and I do see its limitations.