I don't think it will be a forced thing at all, at least not for the first couple years. Well at least not with enterprise/pro versions at least.I'm of the same mind, but it doesn't sound to me like it's going to be a thumbs up or down option. It sounds to me like any compatible PC will probably get the "upgrade" in the same manner as we're currently getting major version upgrades in win 10.
I suspect windows 10 will be depreciated and we'll just be getting security updates until it's EOL.
10 might not get much in the way of changes, but I'm sure we will see at least another major update or 3 before they switch to a just security update mode.
Of course, we can rock win10 till 2025 but If I like win11 I would like to upgrade and not have to worry about the OS for years to come, that's my take on things
Oh don't get me wrong, having the cutoff not include Zen 1 surprises me too.
I did check my wife's laptop since it is somewhat due to get a cleaning/redo but it is a i3-5010u and from what I can see doesn't make the cut either. So instead of just being able to start fresh with 11 I'll have to redo/clean 10.