Yes and no for me
Distro doesn't matter because they only differ in package manager and initial configuration, you can always compile things if you really need it.
GUI doesn't matter because you'll end up with all KDE and gnome dependencies installed anyway because your applications need it.
Experience probably matters, but if it doesn't, it may be because there is just so much there to know.
I would say Linux was more ready for mainstream use 10 years ago. Now with Wayland and (god forbid) Nvidia is quite unstable. And if the best advice is "do not buy Nvidia", then indeed it isn't ready for the mainstream use.
Some of them are your coworkers though.
I've read the title 3 times and still have to idea what it says.
On 3060 mobile, there is flickering in steam and chrome, but it's usable. In chrome I believe it can be fixed by disabling hardware acceleration.
Sure, I agree, but Nvidia proprietary driver is still the best for gaming, isn't it?
One step left - read JIRA description and generate the code