Yeah, I can believe that there are some people who just don't like Bethesda's games, but I don't agree with them. I like the isometric games, New Vegas, and Bethesda's releases.

All of them had their own warts and limitations. I didn't like the timer -- one had to complete a major portion of the game plot by a given period of time -- in Fallout 1. I didn't like the dialog system in Fallout 4, or how enemies tended to get really bullet-spongy late game. I didn't like the bugginess or limited draw distance with kinda prominent pop-in in New Vegas. Fallout 76 -- owing to its multiplayer nature -- has a kinda limited story and single-player game.

The series as a whole has always has some balance issues with the various skills/perks.

But there also isn't a game in the (mainline) series that I regret having purchased, either.

And I think that the series definitely progressed in a number of ways.

Some people didn't like the shift from the "skill percentages" system present from the first game through Fallout: New Vegas. I don't think that it was a great system. It tended to be grindy, and there were some clearly-better paths to take. I think that the series is better-off for having dropped it.

Some people really didn't like having a voiced PC in Fallout 4, like it breaks their sense of immersion. I don't really feel strongly one way or the other, though I do think that having a voiced PC, absent good voice cloning and synth, makes it hard for mod authors to fit content in seamlessly.

Fallout: New Vegas had a lot of complex story interactions, ways in which you could reshape the world; one choice and another interacted. Fallout 4 was simpler. I liked Fallout: New Vegas doing that...but then, I also remember sitting on a game guide so that I wouldn't make "wrong" choices, because a lot of the interactions aren't obvious.