Well those are all also apps? The App System UI Tuner still has this setting.
@katcos
Reg. The button change this was discussed a few times already and is not possible with stock system and launcher.
Just remind that comapnies like e.g. Samsung customize the systems a lot, so just because a video talks about Android 13 it does not mean its default Android 13…
All this at the end are feature requests you can send to support.