I am not sure if you replied to the wrong thread, good for you that it works for your needs, but
My point is that GOG did not drop Linux support and instead partnered with another company. Not about the quality of the software.
- Gog waning Linux support is completely unrelated to Heroic
- Gog did not seek partnership
- Heroic devs just applied to a program that anyone can apply to.
That said, it is shady to inject links and not notify it on the release note or change log. I think there was a message on their mastodon at some point, and the implementation crashed for some people with more restrictive firewall on their network, there were some discussions on the issues page of their code repository.
Depends on the threat model and how long do you need the data.
Worked on a place long ago, that anything they needed to save offline from more than a few decades where stored in microfilm, the expectancy there where they would last 80 to 100 years.
Anything else was pretty much tape.
You also take in account the technology avaiability. The more complex is to use, harder will it be to reproduce in the future. Even with tapes, you might want to copy the data to another tape/recorder every decade or two, to keep it on par with the technology.