[unnouinceput]

Or have Veracrypt volumes uploaded to some service and use it from anywhere on the world when need it? Much simpler

[Seirdy]

Veracrypt is source-available, but proprietary. A better solution would be LUKS-encrypted partitions. For single files, gpg-based encryption should work as well.

[unnouinceput]

And having source available, and most important can be compiled from those sources, means can be scrutinized for vulnerabilities by security experts, yes? That sounds good enough for me.

[Seirdy]

Security wise, yes. But secure or not, proprietary software can be a turn-off for many.