Baldur’s Gate 3 is incredibly detailed in combat though, so much so that it takes sometime to wrap your head around it. I’m addition to pushing and jumping, which both sound so simple but have a huge effect on gameplay, there’s also environmental things that you just don’t think of because in other games in the genre it isn’t an option. As an example, there’s a giant spider that wanders around on webs and summons smaller spiders from eggs, you can sneak around to destroy the eggs before combat to stop summoning and destroy the webs whilst the spider is on them to cause it to drop and take extreme damage.
So you’re right that character building may be better in Pathfinder - I really do love casting touch spells through weapons, it’s great - the combat in Baldur’s Gate 3 is far more interactive and dynamic. It’s also way more accessible.
Either is a good choice, but I give the edge to Baldur’s Gate 3 because, well, every single line is voice acted and motion captured, and the freedom you get in the story is astounding. It’s such a profound improvement, a night and day difference from the basically everything else in the genre.