I do game dev, and I've been loving VSCode. I used to use a mishmash of stuff, but VSCode can do kinda everything. Working on retro-dev C/asm for NES or Genesis? Lua projects? Shaders? Debugging a native Linux/SDL game? Doing some math in a Julia notebook? Unity3D development? Working on Windows/Mac? The answer is VSCode to all! I still use vim for some light stuff or working on remote machines, but meh... VSCode has nice defaults for me without having to fiddle.
For my native Linux gamedev, I've just been using the MS Cmake and Cpp-tools extensions. They work great, and you can script up the rest with actions. The debugger isn't great, but it's convenient and good enough for simple crashes. I switch to GDB when things get interesting though. I suppose I have an extension for shaders too, but it's just syntax highlighting.
I have, but it doesn't show the MS extensions like the C or CMake tools which is kind of a dealbreaker. None of the alternatives really work well enough in my experience. I'm fine with opting out of the telemetry.