There are both x64 and ARM64 RPM and Debian packages available for this closed-source Linux app.

One more reason to stick to my current niche distro :-D

BTW: out of curiosity, I just went to chatgpt.com and asked:

briefly, what's the recommended way to distribute a desktop app on linux?

The answer wasn't brief (at least for my definition of "brief": it started with a bullet list of all possible packagings) but it ended with:

If you want one recommendation: ship Flatpak + AppImage. Flatpak for normal installation/updates, AppImage as the portable fallback.