If they can set a single machine as target every few years and make it work, that would be a lot better than having no alternative.

M1 support is pretty usable nowadays, and I would imagine at least a fraction of the work translates to future devices... It's not sunshine and rainbows, but it isn't a project doomed to fail either.

M1 support is barely usable, at least on m1 air last time I checked idle battery drain was about 7-8% per hour (in macos battery health is still at 96%). Alt DP mode doesn't operate under kde wayland plasma due to inherent incompatability between implementation design and kwin, everything else is surprisingly good, albeit battery was really hard to ignore to fully switch.

Hopefully, they will manage to get it done someday.