I think the layout will be the kicker.
Our old house was 98m2, but was poorly laid out- the upstairs was bigger than the downstairs (it was a new build and the upstairs went over an archway which was an access road to the estate).
Downstairs, was a very small kitchen- teeny, two people in it and you couldn’t move. No room for dishwasher, only washing machine, and one small usable side for kitchen prep. Then an open plan living dinner. That was fairly big- 5x5m BUT it’s not that big when you have to do EVERYTHING in that one room.
Upstairs was two double bedrooms, a single room and small-ish but perfectly fine bathroom.
It was just about ok with two adults two young kids, but by the time the youngest was 6 it was difficult if they wanted to watch different things on tv etc/had friends over.
There was no space downstairs to do their own thing. (I didn’t want them having tvs or games consoles in their rooms).
We moved because of the lack of space downstairs. Our new house is more balanced. 120m2, but feels much bigger as there are two living spaces downstairs. The bedrooms are smaller (or at least they feel smaller as two are not square but long and thin).
Good luck with your decision.