This is not advice to just follow for anyone. For some people this may be right, but for others it can be dangerous and a disaster. (At least if there's any chance "months" turns into "years".)

If one is of verge of depression (or similar stuff) then removing routines in your life is in general not going to fix things, but make things worse.

A long vacation or unpaid leave, sure. But quitting work without a concrete plan to return and definite exit point feels dangerous. If one isn't in the right place mentally suddenly you are just stuck at home watching Netflix in a downward spiral, instead of all those exciting things you planned on doing but somehow don't end up doing.

I remember seeing a post from someone on HN that started in this place, then did quit work for a year. It seemed quite obvious reading about that journey that attempting a "reset" just made things worse.