I myself have been using an open source lib that I contributed a fix for and inquired about it. I didn't just drop a PR either, opened an issue, was told PRs accepted, opened a PR, signed a license agreement and then the PR just sort hung out for months without response even after some gentle prodding.
Now, they don't owe me anything and they don't have to merge the code, it is their repo after all. However what did I do? use an LLM, fork the repo with my changes and now "I" maintain that private fork and add to it as needed.
As time goes on I think these smaller packages / clients will start to disappear as people/LLMs just spit out a client library or whatever or just implement the same thing over and over. Combined with the opinion of the author I figure oss libs for npm, ruby, pypi etc will start to dwindle.