I played this in tandem with Disco Elysium and tbh I forgot how goddamn boring of a game this was, made for a good palate cleanser after any session of the former game. FO4 is considered either fairly disappointing or just quite bad due to its dumbing down on a lot of RPG mechanics (on top of a lot of other things). Yet going back to this game made me appreciate FO4 somehow since at least I thought some of the new additions in 4 were neat. There's really no reason whatsoever to go back to this when New Vegas exists. Hell, I thought by getting the DLCs I'd at least be adding some spice into this second playthrough but nah it just allowed me to get end game material at like, level 8. The biggest positive I can say this second time around was that it somehow managed to not crash on me every hour or so, god's blessing be upon me i guess. Overall it's just a really bland, monotonous and mind-numbingly easy game to go back to. Even Fallout 4 has stuff like factions and uncapped levels to entice another playthrough but if you go through GOTY (hell even if you've just played vanilla FO3, the dlc isn't anything you need to bother getting unless you want to sit through 2 hours of bad gunplay to get a Gauss Rifle and the best Power Armor in the first few hours of the game), you've pretty much seen everything. Not helped by the fact you can miss ~50% of the game and still get level capped, so why bother doing any other questlines. Here's a list of areas/questlines I didn't do because I didn't need the exp/weapons/money/karma nor did I want to waste anymore time with this than need be.
-The Agatha quest (I've never done this despite hearing this is one of the few good quests)
-The entire Arefu quest (other than getting the bobblehead here)
-Anything Oasis related
-Anything Tenpenny related
-The Canterbury Commons quest
-The grayditch quest
-The big town quest
-Anything Rivet City related that wasn't the main questline
And despite missing a good chunk of the game's locations and side quests, I capped my level and had a skill spread average in the 90s. And this was without getting any of the 'add bonus points into X skills' perks that were completely removed in NV. It was just an extremely mindless experience.
But at least Fawkes is good.