[mtlmtlmtlmtl]

I'm not a C++ dev, but I would recommend JetBrain's CLion IDE for C/C++ development. It has great integration with build tools, debugger, valgrind, iperf(for profiling). It's a bit pricy, but it's possible to redo the free trial indefinitely.

[sptth]

I am more of a CLI user I've been using neovim with coc for js, ts, python and even solidity development. I will try first to have things working in my usual dev environment, but thanks for the suggestion I've heard good things about CLion and could probably get a free licence.

[pavon]

For vim, many of my coworkers love YouCompleteMe, which provides IDE-like autocompletion and more. I don't use autocompletion much even in an IDE, so I mostly stick with ctags in vim to let me jump to definition of functions/variables/classes, etc.

[smt88]

They used to have free licenses for students, too. Not sure if that's available or useful for OP.