A number macOS Catalina problems and issues have arisen after its release. That’s always been the case with newly-released operating systems, which means it’s hardly a surprise. However, it also doesn’t mean that we should just ignore such issues, and simply wait for Apple to release updates to fix them.
You’d want to fix those macOS Catalina problems right away, especially because some updates might come with their own set of issues. The macOS 10.15.4 update that rolled out in late March 2020, for example, has been causing serious issues like full-on system crashes. What’s worse is that the supplemental update fix those issues has also been causing its own fresh set of problems.