When did boundaries start to stick with your puppy?

I was wondering when did boundaries start to stick with your puppy? We have some clear boundaries that never change. For example, don’t stand against the counter / table, dont eat the plants, dont chase the cats (very hard one😂). He knows he cant do it, and I learned him the behaviour I rather see (four feet on the ground, checking in with me when he wants to fixate on the cats). I also always try to reward the times when he does the good behaviour, like ignoring the cats, having four feet on the ground.

He knows he can’t do it, but he still keeps trying and only stops when I start to get up to stand in between him and the thing he wants to do. Sometimes he does stop with the 3th ‘no’. Sometimes with the first one. Sometimes not and I have to stand between him and for example, the table, until he makes a better choice (walk away, disengage). But every day, he tries the same things again😂. Im already happy that he knows what ‘no’ means. But is there a point where they stop trying? 😅

He is a 15 week old puppy.