Well, +1 to that.
Although I would say, that good old raw installation (e.g. tar.gz) would yield more usable and universal/
Additional problem with snaps, flatpaks and AppImage - is that Obsidian, basically, runs sandboxed and I was yet unable to get fonts I want to be available in Obsidian. (Fonts are just tip of the iceberg, really).
Linux is very hackable, and since release archive is available for ARM, it would be incredible if release archive be available for x86/64, it wouldn’t be too much to ask.