A quick check of the Windows options suggests only Digikam claims video support, which uses ffmpeg so should handle everything you've got.

I always backup my files manually with system-level tools before importing to make sure I've got multiple copies, but that is an extra level of faff and takes time - makes me envy those professional photographers who have staff to do the boring shit for them.

And anyone capable of superimposing faces to high enough standards would get promoted to an assistant, especially if they could do a good Mr T onto Columbo.