Honestly it's fine. LSPs are nice but you don't need them per se. A combination of vim, tmux, entr, a fast incremental compiler, grep, and proper documentation can get you a long way there.

A lot of critically important code that's running the servers we're using to communicate was written this way. And, if capitalist decline continues long enough, we will all eventually be begging for vim while writing code with ed.

Personally I use helix with an LSP, because it helps speed up development quite a bit. I even have a local LLM for writing repetitive boilerplate bullshit. But I also understand that those are ultimately just tools that speed the process up, they do not fundamentally change what I'm doing.