>>56119116My attention span is definitely shot like most people's, but I did a full playthrough of gens 3-6 during 2020-2021 isolation because I wanted to assemble a full living dex + complete the nat pokedex in all gens as i'd never actually done it before (and also to give myself a challenge to complete before finally sucking it up and playing Sword).
From start to finish I ended up playing through Fire Red, Leaf Green, Ruby, Sapphire, Emerald, Colosseum (first time), Platinum, Heart Gold, Black, White 2, and Y (didn't do ORAS or SM because I still had my original copies), in addition to doing Ranger and Channel for Manaphy and Jirachi.
I had a great time with it, and the only part that felt tedious was when I did Sapphire, because by that point i'd already played through Ruby (and seen the improvements made in Emerald), and I slightly cheesed it by trading over a few of my Shadow pokemon from Colosseum to save on fully grinding another team of 6 for the last few gyms and Elite 4.