Is € 4.000 enough for around 20 days in Europe these days?

Hi! I'm planning to do a travel to France, Italy and Switzerland about June of 2027, and wonder if € 4.000 would be enough to do it (not including airplanes tickets and accommodations, just the cost of food, visits to museums and monuments and local transportation).

I'm thinking about 3 days in Switzerland (less days cause I'm aware it is the more expansive one)

4 days in Paris + 5 days near cities

and around 6 days in Venice.

Would € 4.000 be enough for 18 days? I'm thinking about doing a economic travel, would eat most of all at local places, but also don't wanna starve hahah thinking around € 200 per day, but wanna spend less than this if possible. Do you think it's possible to spend even less?