That can be true for self-contained command line tools, but not for complex programs with actively development dependencies (especially anything dealing with networking or encryption). For example hexchat uses GTK2 which is likely to be removed from mainstream distro repos in the coming years because it has been obsolete for a long time. Also openssl which is known to change its API occasionally which means that anything that uses it needs to be updated to stay compatible.
I tried cosmic in VM and they have a long way to go. Whatever they release in 2024 will be just barely usable, nothing more. Think of stability of KDE 4.0 with 1% of its features. I'm not saying that they are doing a bad job, quite the opposite. But what they have right now is only nearing the bare minimum, and the road ahead is long.
Wayland is not a drop-in replacement tho. It's like if glibc developers declared it obsolete and presented a "replacement" that has a completely different API and has 1/100 of glibc functionality and a plugin interface. And then all the dozens of Linux distros have to write all the plugins from scratch to add back missing functionality and do it together in perfect cooperation so that they remain compatible with each other.
This makes using "swipe to previous app" gesture harder in case app has a list with swipeable elements (such as Gmail) One of the purposes of the gesture bar is to prevent such conflicts.
No, he said that he doesn't sell starlink terminals in Russia. When asked whether Russia uses starlink he declined to answer.