Linux

Use whatever floats your boat.

Seeing as you have money (you bought a mac), there are probably more than enough linux laptop and desktop brands out there.

Linux Preloaded has an overview. My favourites (because Europe) are:

• Tuxedo Computers 🇩🇪
• Slimbook 🇪🇸
• Starlab Systems 🇬🇧

There's no need to give your money to anti-competitive business like Apple, HP, Lenovo, etc. You can contribute to an alternative, more open, competitive ecosystem. A new macbook pro costs ~2k€. You can get something roughly similar for 1.2k€ from tuxedo computers: infinity book. You can configure that to have 96GB RAM and 6TB storage and you're now at about the equivalent price tag. If you want a version with a dedicated NVIDIA graphics card here you go. Or here with an AMD graphics card. Both with 64GB RAM and 2TB storage (4x that of the default macbook pro). Go NVIDIA if you want AI/ML stuff, go AMD if you just want to game.

Those were tuxedo computers laptops, and they have more, but Slimbook has similar laptops (example). Starlab Systems books are more expensive, but still provide more bang for the buck than Apple and are very customisable.

Anti Commercial-AI license

I dont think Photoshop and Roblox work on Linux at all (Roblox does through Sober right now but probably not for long). Buying another computer will not change that (and iirc mac os also supports dual boot).

However if you buy/build a good enough pc, you can run windows in a vm and use roblox/ps without dual booting.

If you dont strictly need a laptop, then yes I would recommend you build your own desktop pc. But if you do, AFAIK xps and thinkpad line of laptops have pretty good quality. The higher end surface laptops are also good (but very expensive). I cant really recommend much else without knowing what features you expect.

Run Linux in a VM and share the file system with macOS.

Parallels has really great integration.