Every week an issue like this shows up in some project: someone demanding a fix for a bug in a library that is free, open source, maintained by one person in their spare time, and used by the person complaining in a commercial product generating revenue.
The tone is always the same. "This is UNACCEPTABLE. We deployed this to production and it broke. We need a fix IMMEDIATELY." The maintainer has a day job. The library is free. You deployed it to production without reading the changelog. But somehow this is the maintainer's emergency.
"This does not work on MY setup." Cool. Did you read the requirements? Did you check the supported versions? Did you provide a minimal reproduction? No? You just pasted your entire stack trace and wrote "FIX THIS" in the title?
"When will this feature be added?" When someone builds it. That someone could be you. The code is right there to fork and work on in a branch before submitting a PR. That is the point of open source.
"I found a vulnerability." Great, report it in private, through the project's security advisory or the maintainer's email. A public issue titled "CRITICAL SECURITY FLAW" with a working exploit exposes every user before a fix exists. Demanding a response within an hour on top of that helps no one.
Every open source project you use for free took thousands of hours nobody paid for. Someone has to debug it and write the documentation, then answer issues and review PRs from strangers. Some of those issues just say "this sucks" with no further context.
The maintainer owes you nothing for sharing their work. You chose to use it, so a breakage in your production system is your responsibility. Pinning the version, writing tests, and reading the source were all options you had.
If you need guaranteed support, pay for software with an enterprise tier or hire a consultant. But do not yell at someone who gave you their work for free because it does not perfectly fit your undocumented edge case.
To every open source maintainer reading this: thank you. You do not owe anyone a response time SLA.