I've worked on a lot of large and complex projects (mostly kernels) using just vim, git, gdb, cscope, and ctags for development for the past 15 years. I think I've encountered maybe one or two quality of life vim bugs in that time, and a few annoying gdb bugs.

Like AI, until someone shows me something that can come up with novel solutions to deeply technical problems, simple tools and intelligence on the part of the programmer is what works.