Therefore, the info below concerning S4S is obsolete, but some tips might be still useful, if you need to switch between different Blender versions or maybe you like to use the prepared rigs I shared below.
Update as of October 4th 2022: Sims 4 Studio released a new beta version and now supports the Blender version 3.3. Creating Poses in Blender 2.8/2.9/3.0 - Rigs & Compatibility Tips for S4S
