Basically, the shut-yer-mouth-VS-Code-I'm-an-adult-kit.
Just a bunch of settings one could use as a starting point in created a less noisy VS Code experience out of the box for those who are quite familiar already with its settings.
You could merge with your own setting.json file or not...choices, choices! Or simple clone this repo, move 'quieter.json' to your VS Code settings.json location and rename it to settings.json.
It is intended as sort of zen-mode (Ctrl/Cmd+K Z) light, turning off most distractions and notification/confirmation annoyances while using 'regular' mode (non-zen).
I use these settings combined with View: Toggle Full Screen most of the time.
Welcome! But as SADBFL, I have final subjective opinion over "sensible defaults". Deal.