Earlier quoted context omitted.
Some years ago I had the tech at the Apple store replace a single damaged key on my laptop for me completely free, he had a drawer full of keycaps, it took him five minutes, he was just like, no problem, bye. Times have changed. :(
It’s not that support has changed, it’s the butterfly keyboard. You can’t replace keys with butterfly keyboard, the whole thing has to.
Other people in this thread are saying they have done DIY single key replacements... but maybe it was on models that weren't the butterfly keyboard?
Do I understand right that the "butterfly keyboard" is actually no longer used in the new 2020 models, it was abandoned by Apple? [1] It does seem to have been a mistake all around.
[1]: https://www.macrumors.com/guide/butterfly-keyboard-vs-scisso...