[EU] How many months savings do you consider enough?

As the title says I am trying to see where people stand on this. Obviously this is all personal preference. But that is what I am after.

After depleting our savings when buying our apartment 2 years ago, we’re about to cross 6 months liquid savings in just plain old savings account with ability to immediately withdraw money.

(To clarify that is 6 month assuming 0 income, which is very unlikely given the social system of our country - so realistically we have even more in savings.)

As you can imagine, the interest in this account is not great, so I want to set a limit as to when we stop dumping every spare penny into the savings account and begin doing other things (likely try to invest).