I like KeePassXC because it's written in C and is thus cross platform, while KeePass is written in C# and relies on Windows UI libraries. You can run KeePass on Linux (and I did without usability issue for years) but it will look god awful.

I won't knock plugins, everyone has weird use cases, but I don't know what people need KeePass to do that it doesn't already do out of the box. I've certainly never felt the need for any.