Linux systems are usually laid bare for people to tinker with, which for me is specially good if I see something I don’t like, be it software, UI or UX.
Plus, most PC’s I’ve seen from at least the past ~20 years can run Linux, so if I get my hands on a working PC, Linux becomes an easy choice.
Plus², Linux can be made very privacy friendly.
Bandcamp, Supraph Online, Ototoy, Uta 573, Steam and GOG’s OSTs and Apple’s iTunes store have been my to-go options. No DRM, no worries. Just avoid Apple’s music subscription, as it is DRM’d.