This is my eternal struggle, with any type of biscuit.

I try to not eat the whole pack in one day, so eat some then close the pack. But inevitability I go back later and finish the rest!

According to the video it’s MIT licence, and they discuss the risk of such a licence vs coreutils usage of the GPL

Tea bag first, then freshly boiled hot water.

Yes. But it doesn’t have to replace your default terminal emulator. You can have multiple and use any of them.

I see what you mean. Yes there are great examples like those that offer support contracts for the open source software projects.

I think one point of confusion here is that as open source licenced projects, they do not restrict commercial use. The companies that lead the development just happen to also offer the best paid support.

Minor correction: proxmox is AGPL so free to use commercially without their support contract.

Ubuntu and LibreOffice are both free for commercial use. Or am I misunderstanding what you mean?

It’s no longer open source if you restrict commercial usage. Sure, licence your software that way if you want to, but don’t call it open source.