No it is straightforward to setup a Maven project manually and use Vim if that's your preference.
I find the whole notion of software engineers rejecting software applications being useful as a concept while it being the primary focus of their own profession quite fascinating.
Personally I use various IDEs, light weight IDE/Editors and even vi/vim depending on the language & situation.
Think of it this way:
If I asked my team to develop a project/POC with this framework and they came back to me saying that they have to wait for (or prefer to wait for, or whatever) jet brains to add java 21 support to do this, I would not be very happy.