We're talking here about an OS that hasn't even come out yet, that will get years of security support, for computers that Apple hasn't been selling for several years now. Seems pretty reasonable.
If it was planned, Rosetta 2 would have never existed in the first place. It would have been a qemu fork haphazardly crammed into Xcode.
There was no "planning" here. Here's how I imagine it went: a developer whined about tech debt, management seized an opportunity to generate revenue, neither party considered, yknow, humans, and now we're here.
For day to day tasks there is no difference.
I think "M series chips are no better than ten year old Intel chips" is a take that would be somewhat difficult to sustain, given the data.
Btw she can downgrade to Sequoia from Tahoe.
And why the hell would I know that? I was 8 years old the last time I used a Mac. This is shit I shouldn't have to know.
My 2019 MacBook Pro used to sound like a jet plane taking off whenever I did any sort of build. On a bad day, I could've baked some cookies on it. Admittedly, the corporate spyware that was constantly scanning every single file didn't help matters.