I think TotK improved on a lot of things of BotW. It was obvious BotW was kind of a "testing ground" for an open world Zelda. To me TotK is just BotW 2.0, there's a lot to like, but because it's so similar it carried over a lot of the downsides of BotW as well IMO.
It's vastly improved, but I still think there's a lot of room to improve even more. Here's hoping we get a third game in the "series" and they can keep the momentum going
I found the durability system annoying in BotW because I constantly had to consider the "economics" of engaging in a fight (weapons that will break during the fight VS. weapons that I will loot at the end of the fight)
On the other end, the new weapons system is a lot more enjoyable thanks to fusing monster parts to the weapons : killing monsters with larger health bars consistently gives you better monster parts to fuse with your weapons. I also enjoy the "base weapons" all having a special effect, it leads to nice combos. For instance, I love fusing good parts to Zora weapons and throwing a water fruit at my feet during a fight to double its damage.