Now that TS2 and most of the AI plugins are running in Affinity Photo, I am using Studio2 regularly in my photography workflow. Some things I would like to see in the next upgrade of Studio:
Improvement of the Text filter. Adding, dragging and resizing text currently appears on the screen as a ragged, distracting motion. The process should be smooth and fluid. Adding a shadow filter would be great also.
Make it possible to easily revise settings in previously added filters.
Add ability to use the old Topaz plugins in Studio, specifically those that have not yet been adapted as a filter in Studio – Star Effects, ReStyle, B&W Effects.
My comments based on experience with macOS Catalina version 10.15.4, not Windows.