DaVinci resolve is free for non-commercial *and commercial* use and I would personally choose it over Premiere Pro (I switched from Premiere Pro to Resolve and later upgraded to Resolve Studio). The Studio version mostly adds stuff like realtime noise reduction—which is amazing, but it extends well beyond the functionality I expect from a professional NLE. Some codecs are not included or don't work as well with the free version so YMMV depending on source formats, OS, and hardware, but that wasn't an issue for me when I was using it.

As an aside, BMD just released a bunch of new training material for free on their website (no registration required):

* A series of books available as PDF downloads or purchase if you want a hard copy

* Videos available for streaming or download

* Project files and source media for following along

https://www.blackmagicdesign.com/products/davinciresolve/tra...

DaVinci Resolve doesn't support mp4 files which makes it a poor option from the get go.

IME it does accept MP4, just not every variation and profile.

It seems to only be a problem on Linux. The paid version supports MP4(H.264), but not AAC.

Well to be fair, Premiere Pro doesn't support MP4 on Linux either. :-)

I'm a very casual user, but I've only used it with mp4 files straight from my phone camera and Youtube downloads.

Doesn't accept my gopro videos for sure so it was useless to me when I tried it.

just use ffmpeg to remux the file?

every time you recompress a file you lose quality

Hence the use of the word "remux", it's lossless (no re-encoding).

It doesn't support H.264 or AAC. Just changing the container.

-vcodec copy -acodec copy

mp4 files usually contain H.264 encoded video which requires the paid version for audio it usually contains AAC encdoded audio which is not supported at all. You can't get away with just copying.