It's not the DAW, it's the plugins (VSTs etc). How many of them work seamlessly on Linux? How easily can you speak to the vendor if there's an issue, without the vendor telling you "sorry, it's not tested on Linux"? What about plugins loading industry-standard libraries (like Kontakt), where the surface of what can go wrong is multiplied threefold?
You don't need to study distros for years. Linux is Linux. Manjaro, Mint, Pop, Ubuntu, pick one, and get on with your work.