I recently switched from Shotcut to Kdenlive. Kdenlive's UX is much more intuitive. Lots of features, I still feel like a beginner, which is such a fun feeling!
I'm using it together with OBS to post short demo videos of my side project. I could use Loom I guess, but I prefer to keep my tech stack FOSS when I can.
Creating "non standard" video resolutions is a bit of a pain though. But I've solved that with an ffmpeg oneliner.