Lakers get a great scorer in Zach as this season, he's averaging 22.7 ppg on 44% from 3(7.3 3pa/game). He's great as an off-ball cutter and is lethal as a catch-and-shoot weapon off screens, evident by the fact he's averaging 1.37 PPP this season on plays where he cuts to the basket, and is shooting 50% on 3 C&S 3pa/game. They also get Bev and Craig to add depth and improve their perimeter defense.
We get Walker who's ceiling is an all-defensive team type guy. Plus he's a great rebounder and can set solid screens and finish at the rim effectively. We also get a 2025 2nd and a 2030 1st, + a bunch of salary.
The Jazz get a solid wing in Rui who is a solid midrange scorer and has a good defensive potential, but he needs some defensive refinement in a rebuilding situation.