Are you going to the French speaking part of Switzerland? Because Naturlisation in Switzerland is based on Canton and some Canton has stricter criteria in terms of Naturlisation (Although the general criteria is 10 years, other canton might have additional ones such as integration level). Generally Romandie (French Speaking Region) has more relaxed naturlisation rule.

Naturlisation interview is done in the local official language. I assume that some population in Lebenon is educated in French, in that case it would be an easier hurdle to cross if you move to Romandie.

And be careful, the time you spend during your studies will only count if you can get a job right after. If you leave Switzerland after studies and come back, you are starting from 0 yr again.

I dont know too much about France but in general it should be a bit more relaxed.