I'm not really trying to shit on Larian. There's a lot of good in the "Original Sin DNA".
Some stuff is frankly even a net improvement over anything Baldur's Gate ever did, and I say this as someone who was almost obsessed with the franchise for 20 years.
Party movement is not one of these.

Party control in Baldur's Gate 3 is a complete mess that begs to be addressed. SAY NO TO THE TOILET CHAIN