People have been using emacs for how many decades? Or vim and terminal? Linux DEs rarely change entirely without the ability to run old versions, with the notable exception being gnome 3 which is still divisive to this day in large part because of it. And even then it was still possible to keep your workflows with MATE, the continuation of gnome 2. Libre office just recently implemented the ribbon and you can still disable it.

Radical workflow changes with no recourse is the standard in proprietary software, not so much in FOSS.