New bridge syndrome. New bridges are exciting, less cruft to work through, and you get a ribbon cutting ceremony. Fixing pot holes is expected and you make drivers mad shutting lanes down.

That said, volunteers that are up to it, bug fixes (and creating good bug reports too) and documenting code is generally seen very appreciatly by code maintainers, but for users of unpaid for FOSS products, you’re going to get bugs and people will fix them when they feel like it.

If users want bug fixes in a certain time frame they need to pay somebody for SLA to fix bugs.