Is it possible that you are using a Linux distribution that still has Pulseaudio instead of Pipewire? That would cause unnecessarily high latency in the audio stack on the machine.
Do you happen to use a distro that excludes patent encumbered codecs? For example, if you were on Fedora, you might want to install pipewire-codec-aptx from RPMFusion?
Some companies allow specific Linux distributions (like RHEL) only. Maybe that’s something for your case too? At least there is “Enterprise” in “Red Hat Enterprise Linux” ;-)
GNOME shell’s overview search does almost the same.
Waydroid
I wouldn’t recommend using Waydroid, it basically runs Google Play services and other stuff as root on your machine.
Instead, it would be nice if we had seamless integration of virtual VMs including Android like Qubes OS does this.
Audio is a mess. To have low latency in my DAW (Reaper Linux Version), I have to launch it via the command line using pw-jack reaper, otherwise it won’t recognize the audio device or uses ALSA or Pulseaudio both of which have way more latency than JACK
Most modern linux distributions use pipewire, which should have lower latency than ALSA or Pulseaudio, if configured correctly even lower than Jack. You might want to try that instead, especially when updating your linux distro.
Regarding laser cutting: Some fablabs have been using Inkscape and just print the vector graphics to the laser cutter. Have you tried this?
For your audio quality: Have you installed pipewire-codec-aptx from RPMFusion? Fedora ships without patent encumbered audio and video codecs (and some other software) for legal reasons.
It might be worth trying out restic. If you prefer graphical user interfaces, the latest version of Déjà Dup should do the job.
Do you happen to use a very old version of Ubuntu? You might want to update the distribution. This might also fix the bug you mentioned.