I’d also recommend Ubuntu LTS or Linux Mint. You may need to add a startup flag or swap to a low-latency kernel but since the mainlining of some features, a special kernel is rarely needed. Basically, keep an eye out for latency-related audio issues and take action, if needed.
For DAW, if you’re not already using one that has a Linux release, you might check out Ardour.
For video editing, check if KDenLive covers what you need.
For design software, it really depends on the type of design work. There’s options for about every niche, from FreeCAD to Inkscape (vector), and Gimp/Krita (raster). Figure out what your need and find the project that best suits.
Now. With all that said, I will add another thought. I’m not a fan of Apple but, if you find that you’re having too much trouble getting what you need working, I would seriously contemplate a Mac Mini or MacStudio, if you don’t absolutely need a laptop. I switched my spouse to a Mac Mini w/ an M2 from Costco for her studio because of the constant instability and system-breaking “updates”. It’s less tinkerer-friendly but that’s not its purpose. It is there for DAW and related duties, nothing else and it works great for that use case, letting me focus on FOSS stuff elsewhere.
EDIT: To clarify, it was MS causing the instability.