If LLM's are indeed a game changer professionally, you kind of need to pick one.
Personally, I loathe seeing power shift towards mega corporations like that, away from being able to run your own computer with free software, but it feels like the economics are headed that way in terms of productivity.
You cannot rely on a closed source "AI" in someone else's cloud for your work. After all, it can be disabled for you at any time. "AI" can easily steal all your technological secrets. At the request of the owner, "AI" can easily mislead you and insert backdoors into your products. "AI" can even easily incorrectly answer some questions specifically for you if the owner of "AI" wants to remove your competition. And you may not even understand it.
Personally, I loathe seeing power shift towards mega corporations like that, away from being able to run your own computer with free software, but it feels like the economics are headed that way in terms of productivity.