I’d pose the question:
Do you want to retire right now or soon?
Do you believe it’d make you happier at this point?
Irrespective of money and your income: Are you happy with what you’re doing right now?
Would you want to change anything about your current job and or life?
From what you wrote in your initial post above, one thing seems quite clear: You yourself do not feel comfortable about retiring early at this point. Now, will (should?) you let yourself get talked into retirement now by unknown strangers through an internet forum?
Try to answer the questions in my first paragraph above
If you really think to want to change your life now - and again, it’s a question you should try to answer first, without looking at the financials - maybe you could try to gradually ease into your way of living and budgeting?
By, for example, reducing your income (and workload) to the point where it will just cover your current expenses but no more? That is, an amount with which you won’t be able to make savings but don’t have to dip into your nest egg either?
(Also, and this is merely a suggestion - but If I had to make just one suggestion outright, it would probably be this: If you decide to pull the trigger, don’t just reduce hours at your current job, activity and environment. Try to mentally distance yourself a bit and get outside of your comfort zone. How about working in another - lower-wage country. Could be with your current employer, if they have operations there? Or how about giving your career an entirely new spin in a different field? Something you always wanted to try, yet didn’t, because you didn’t know if it would work out and wanted to play it safe so far? Quitting and going back to university to do research? Working for a non-profit or charity organisation? Maybe a hobby or passion that you could turn into a gainful activity? Selling organic grocery at the farmer’s market part-time? Maybe you’re into fine wines or role-playing games, know a thing or two about them and could promote or sell them, for at least some extra income, in addition to living off your stash?
For example, you could think of it like this:
You might be earning 15k/month now. You might have accumulated 2M so far and concluded that at 3.4% withdrawal rate it would give you the 68k a year - or 5.7k a month - that you feel you could retire reasonably comfortably on. If you now got a new job for just a measly 3000 CHF net a month - and that could be part-time or mainly for fun - that would bring your down your required withdrawal rate to about 2% a year. Give or take, depending on the tax situation).