No problem! It looks like there's an AUR package for it - though exercise caution since it is still in beta. That being said, 555 has been in beta for a bit now, so I expect it'll probably be promoted to an official release imminently.

Definitely would give Wayland another try once the newer Nvidia driver is installed later on (either via the beta or the official release). I don't use an Nvidia card anymore (this bug is precisely what caused me to switch, ironically - it has been around for a while and got worse for me when 535 came around) but I've heard from a lot of folks that it resolves the flickering issue.

Either way, I'm glad to hear that you're glitch free now - and on a side note, it appears its your cake day so happy cake day!