Wow I'm the exact same with that in a way. I Played Ultimate Doom non-stop untill I beat it, yet it's taking me ages to beat Doom 2 (I play around a level of it every few months) Interesting as I think most people prefer Doom 2?? Hmm not as polished in the level design maybe? Whatever.
For me...
I'll have another look into it, might play a different RPG though next like that Underrail that was recently(ish) released, I just can't bring myself to play Wasteland 1 unfortunately ;/ sorry, guess I'm too young or whatever paha ;)