Software to Trim a Video into Multiple Files
Now I'm looking for an Alternative that can:

Trim one Video into Multiple Files (ideally with a single Watch true Selecting Parts with Shortcut I/O without the need to Stop Every Time to Export it Manually)

In the light of not fully understand the &quot;a single Watch true Selecting Parts with Shortcut I/O&quot;, my suggestion would simply happens on ffmpeg, i.e
ffmpeg -i input.mp4 -ss &lt;start-time&gt; -t &lt;duration&gt; part1.mp4

The Ability to Name the Trimmed Videos

The ffmpeg handles it nicely

No or little Quality Loss

You may consider the option -codec:v option or more options

It Should be Free to Use (No Watermark etc...)

FFMPEG is free.

Optional Export Queue to do the Time Heavy Stuff while I do something else...

scripting could help