If I'm being fair to the game, it has come a long way since release. It runs better, your shots actually register against opponents, the sandbox has a lot more to offer with all the updates it got, and the maps are definitely improved from what they once were. Definitely try to go in with an open mind, as you may find yourself liking it a lot.
There are a few things I'd note, though, and I'm going to try and put my bias aside here.
1. The game simply is not as polished as other titles in the franchise, especially Battlefield 1, even after all the updates. It's come a long way, but for me - running on an RTX 3080, 64gb RAM, i7-14700k - I still run into occasional stuttering problems and the graphics can be a bit more grainy in contrast to BF1, which still looks and runs perfectly for me. There's also other problems, such as being completely unable to play as Russia in any solo/co-op Conquest or Breakthrough lobbies, which can make grinding upgrades for Russian vehicles an absolute pain in the ass compared to the US (this is a known bug that's been around for a long time, I wouldn't count on it getting fixed), or the camera glitching when you enter helis/planes.
2. Unlike in both BF1 and BF6, 2042 does not have the sweet spot mechanic for snipers. This can be pretty jarring if you're used to how snipers feel in either of those games, as it goes from general upper-body to head being a one-shot to know absolutely demanding you hit headshots. You can argue that's how it should be - and you're probably right - but regardless, it's worth noting.
3. There is no campaign, the Hazard Zone extraction/BR mode was DOA within the first week of launch, and Portal - while it has potential - is ultimately a bot farm most of the time that can be hard to find any real matches in. Paired with no campaign, this means that almost your entire experience with the game will be played in the core gamemodes you see on the front page when you log in, for better or worse - hopefully, like others, you do enjoy them.
4. Last thing - the specialists. There's no getting around the fact that they play completely differently to any of the class systems in the games before. Maybe you'll enjoy them, maybe you won't, but either way do not expect them to play the way you're used to.