This is a complaint I see a lot, and I really do not agree with that.
Many times I saw people saying they would like combats like Dragon's Dogma or Dark Souls in Skyrim, and this is really something I don't want to see.
I'm not sure how to explain my point of view on this, but for me, no matter how you like them or not, the Bethesda Fallout / TES games are quite unique, they really have something special that I can't find in other games. The immersion, the way you interact with the world, the quests, the combats, the overall game design of these games, they just have some... comfy feeling I can't explain.
I'm not saying they are the best thing, but as far as I'm concerned, I love how these game play, like I said, there is some comfy feeling when I play these games, probably due to the fact of how familiar we are with them now and how "master" you are of the games; They are not, at least for me, games I play for challenge or intense combat, and I actually really like being able to decide of the outcome of every situation that happen in these games. I like to be in control in these games and telling the game how to evolve, instead of some situations / outcome being decided by how well I did during a combat or something like this.
It may seem a bit paradoxal because I'm someone who actually really like gameplay-focused games, I'm a big fan of Bayonetta, Furi and games like that, and I love some challenge, but it's really not what I look for in Bethesda RPGs.
For me they are more like some sandboxes with stories where I feel a bit like an almost-god in control of mostly everything, making my own world, and even more on PC with modding and such.
I think there are enough more standard action rpg games out there to let TES and Fallout be their own things, if they have so much success it's probably for a reason.
I mean sure, they can improve the combats (And they really did with Fallout 4, I thought the gunfights really good and don't have much complaints about them), but I think they still need to remain a bit like how they are, not completely changed to play like some other games.