Congrats on your new arrival
I've been impressed with the 2060 Super at 1920 x 1200, although I'm capping at 60FPS at the moment due to my rubbish monitors..
RTX although is a step in the right direction I don't think you will notice most of the time unless you are playing minecraft where the difference looks obvious (in the videos, it's not out yet). Quake 2 was OK (for a freebie) but wasn't mind blowing, might have been better if I played with and without side by side.. but lighting has significantly improved since the original came out!
Cyberpunk will support it and will likely buy that.. Doom Eternal and the new Mech Warrior apparently will, but will see what the reviews are like.. and Battlefield V has it if that's your kind of game..
What games are you playing out of interest.. I've been out of PC gaming so long.. I'm just playing Satisfactory and No Mans Sky at the moment, the latter being fairly old and not taxing the game..