no but you can use it anyway if you want

It's been a solid one for a long time. I haven't tried their new Cosmic based one recently, but it was always good.

Thats like asking what hammer is best. You can use most if not all to drive nails, but not all are best suited for the task.

Pop_OS lets Ubuntu drive fast and break things while focusing hardware/driver support, makes it great for video games. The only program Ive ever had issues with is Davinci Resolve, but those issues with linux compatibility are of their own creation, not the OSs.

Sure doesn't seem like it, from my personal experience, as well as Linus of Linus Tech Tips' experiences. Doesn't mean we can't root for the company when they throw their weight behind a good cause.