Go with one of the ready to use systems. Flatpak, Snap, AppImage. Snap is largely Ubuntu Ecosystem, Flatpak is independent. AppImage is an option if you do not need/want a Sandbox.
Stay away from Docker and LXC for this use case (graphical applications), they are much more work to get going.
I have some Sandy Bridge systems here running strong as Linux desktops for light work. You know, these 4-core 3,3GHz processors from - hmm - 2014?
Honestly I doubt it that Deckard will change that much. First the basics must be fixed. My Index is also laying around collecting dust. Worked okay-ish at first but is mostly unusable at the moment.
Agreed. My answer was in the assumption that it’s about desktop apps as the OP mentioned Electron.