Comment 22 for bug 1971094

I too was unable to run OpenShot on Ubuntu 20.04.

On a hunch I opened Gnome Software with flatpak and snap support. It turns out OpenShot is available via flatpak, so I installed it, and got the latest version 3.0, which seems to run...

HOWEVER I could not open my old projects from older versions of OpenShot.

I tried a few different things with varying success, but this isn't a bug report about OpenShot 3.0, so here's how I was able to run OpenShot 2.6.1 and open my old OpenShot projects:

1) Install the last commit of 2.6.1 (from 2021-11-13)

$ sudo flatpak update --commit=655abaeb016337cca867fb0ddeee99854e624b0e1c1935bfeba60609dc9c912f org.openshot.OpenShot

2) Run the application with lax sandboxing (possibly not wise)

$ flatpak run --filesystem=home org.openshot.OpenShot

3) Once you decide what directories are safe use "flatpak override --user" to change the filesystem sandbox default.

YMMV