This is probably me being an exceedingly old grumpy boomer greybeard, but this is why I don't bother with whatever shiny distro everyone likes unless it's got a proper governance/oversight setup via a properly formed foundation or similar.
Anything short of that pretty much is a strong indicator that it's not trustworthy or reliable and, well, this can happen.
Debian or Ubuntu or Fedora or even Arch are unlikely to magically vanish because someone gets bored, and I feel bad for the people who spent time and effort or even money on this project, but, uh, yeah. Don't trust one-person shows.