New to Linux, have a few questions

I currently use Windows 10 and I’d like to try out Linux. My plan is to set up a dual boot with OpenSUSE tumbleweed and KDE Plasma. I’ve read so many different opinions about choosing a distro, compatibility with gaming and Nvidia drivers, and personal issues with the ethos of different companies like Canonical. I value privacy and I’d rather avoid a Linux distro that’s implementing something like ads or telemetry…if that’s even a thing that’s happening?

As a complete beginner, what sort of advice would you all have for me? Should I avoid OpenSUSE or KDE Plasma for some reason? Are there any ‘10 things to do first when installing Linux for the first time’ recommendations?

Despite all the ‘beginner friendly’ guides and tutorials around, I still feel a little lost and like I’m going into this blind.

EDIT: Thanks to everyone who's offered advice, I really appreciate all the help and the patience with my dumb questions! There's a lot to look through and it's been a busy day for me, but I'll get back to reading through everything and replying as soon as I can!