I'll check it out, but I'm also learning Python scripting in GIMP, and I found a really nice batch plugin called BIMP that can do things like crop, resize, and much more on many files at once.
Although I hear the python-fu thing is going away in version 3.0, and instead you're just supposed to use a code library in a standalone Python script. The python-fu thing is handy because it adds new menu items for the scripts you make for easy access.
Interesting, maybe it will be worth looking into for myself too, because right now i'm only using the macro's menu of my huiton pen, and it's limited to keyboard shortcuts.
And I just checked it, you can have scripts in krita too. So i guess if your learning python scripting you may want to try krita's api, I'm gonna have a peek too when I get the chance.
Kdenlive is miles more capable than OpenShot
Also Kubuntu? That's a OS? Works if you're trying to replace windows but don't think any artist would replace it as a "alternative tool"
The one and only time I tried to use kdenlive, it blackscreened my PC and when I booted back up, my Linux Mint showed in the boot menu as just Ubuntu. I went right back to Openshot.
Fwiw, I've tried to use OpenShot and it sucked hard. Granted, this was on Windows and it was several years ago (3~4yrs), so it may have gotten better (or it might be way better on Linux), but I ended up switching to davinci resolve because OpenShot literally couldn't deal with anything above 720p without crashing. I couldn't complete any university assignments with it. Even just clipping the ends of a video was causing it to crash. Unless OpenShot has gotten significantly better on windows, that's a good example of a place where a pro-quality FOSS alternative doesn't really exist.