Kdenlive

This seems like a decent option, although it has bugs coming in and out all the time! Also it is quite hard to learn to use.

To get started:

import a clip
drag it onto the track area

Shortucts:

Shift + R: cut tracks at current point. You can then select fragments to move around or delete.
Shift mouse click drag: select multiple clips: video.stackexchange.com/questions/21598/select-range-of-clips-in-kdenlive

To set the video length, search for "set outpoint" on "monitor".

Add subtitles:

Effects
Dynamic text

then drag on top of the video track. To add only to part of the video, cut it up first.

Preview has no sound on Ubuntu 20.10. Fixed as of Ubuntu 22.04.

Sound worked on Ubuntu 21.04 though, but it then soon crashed with:

 = = SET EFFECT PARAM:  "rect"  =  0=1188 0 732 242
MUTEX LOCK!!!!!!!!!!!! slotactivateeffect:  1
// // // RESULTING REQUIRED SCENE:  1
Object 0x557293592da0 destroyed while one of its QML signal handlers is in progress.
Most likely the object was deleted synchronously (use QObject::deleteLater() instead), or the application is running a nested event loop.
This behavior is NOT supported!
qrc:/qml/EffectToolBar.qml:80: function() { [native code] }
Killed

amazing.

On Ubuntu 22.04 haven't crashed yet.

Ubuntu 23.04 broke the clip drag and drop!

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