Am I doing something wrong?

Just like adults all babies are different and their temperaments are too. On any given day my baby might be an angel or scream the place down. Youre doing nothing wrong

You are not doing anything wrong! All babies are different with different temperaments and some are just much happier to sit and entertain themselves etc.

My first was like that. Could not sit still had to walk him around. Second much happier to sit (although not so much now at 1). Didn’t do anything different just difference kids but the frustration is real!

My little one sounds more like yours, he's always on the go and likes to go for a wander with me instead of sitting somewhere as he is nosey and likes to see what's going on.
The lap bouncing is and always has been a constant, he bounces himself straight after bottles, the lot.
Not he's pulling to stand, he bounces then too 😅

My daughter doesn’t stop moving shes super active and always has been

As above, all babies are different day to day even. Was the environment loud. And potentially over stimulating? X

It’s definitely just temperament, nothing that you are doing wrong. My daughter is the sort to just sit and chill (by chill I mean eat her food while staring at people with a judgemental look on her face). We have done absolutely nothing to make her this way, from 8 weeks old she would just sit (held) and look around.

You’re doing fine, you can’t spoil a baby. Babies are very different, just like adults. They have different temperaments, amounts of energy, and needs. Also, 7 months is still very young, being in a different environment with new people, a new baby, can be a lot and maybe he was just hungry and tired. Plus he’s in an age range where babies want to be close to their caregiver. Another mom should understand, don’t stress it. I’m going to copy/paste something I read online in another comment because I was worried about the same thing when my baby was about 7 months too.

Children are not same. You meet each child at the point of need

You aren't doing anything wrong, completely down to temperament. My eldest was just like yours and I wondered why she wouldn't sit there like other people's little ones! Then I had my second and she would. They are completely different personalities