What age did you go down to 2 naps?

Baby will be 7 months next week. The last few days his WW have been 3/4/4 and he kind of naturally has switched to 2 naps because he refuses to go down sooner although I do try. His naps are either both 1.5hrs, or 1 hr and 2 hrs. Bed time is 8pm and wake up is around 7am. He seems okay, he literally has chosen this schedule because if I try to put him down sooner he will not go to sleep.

I guess im mainly concerned because these wake windows seem too long for his age. He’s not even 7 months yet. I read that 2/3/4 is appropriate for an 8 month old but his ww are even longer.

Is this normal? When did you go to 2 naps and what are your wake windows?