Interesting. In regards to your first point, do you have justification to back your claim? I’d be interested in reading more, or perhaps seeing an example?

I'd hardly say the jury is still out - Bitwarden has been around for 7 years, GitLab for 9, and New Vector for 6. Granted, they may not have reached the level of success that some software companies have, and they certainly could still fail, but 6-9 years of operation with a foreseeable future of success in the technology world seems like a pretty successful business to me.