HeadsUp: Might drop linux support,...

[FleXsor]

iirc Linux Mint is debian based and uses apt.
So downloading Hybrid Linux64bit (with base tools and most dependencies) Qt 5.9.5 (tools) from the download page should work.
If you want to use Vapoursynth in Hybrid you should follow the instructions over at https://github.com/Selur/hybrid-vapoursynth-addon

Cu Selur

what do you mean by base tools and dependencies? (im a new linux user)