I am not a programmer. But I have been using github as an end user for years, downloading programs I like and whatnot. Today I realized there are stars on github. Literally never even noticed.
The stars are more important when you're a developer. It indicates interest in the project, and when it's a library you might want to use that translates into how well maintained it might be and what level of official and unofficial support you might get from it.
Other key things to look at are how often are they doing releases and committing changes, how long bugs are left open, if pull requests sit there forever without being merged in etc.
An experienced developer could easily step in. The hold back is getting compensated for the effort rather than being forced to turn tricks on the local street corner (aka work a job).
This is why devs are walking away.
Companies offering jobs to maintainers rather than directing funding at them is nonsense. Gov'ts and companies will wake up as cracks start snowballing in their tech stack.
Really does depend on what we are talking about. Some random software that is not critical? Sure.
Some system breaking library that would take down my servers in case of malfunction? No bueno.