I'd say my partner was much more hands on with his eldest.
When it comes to our children he has taken a step back in comparison.
Ie did reading and homework with eldest. Has never done it with ours. But on other hand, although myself and his ex are both stay at home mums. I prioritise education while his ex doesn't. One of the many reasons the courts gave him custody.
I use to refer to him as a Disney dad. But reality was he was doing what he was allowed to do with her. For example we wasn't allowed to book her into swim lessons or take her swimming because she might drown. But we could take her out every weekend to cinema. In comparison I prioritised our children being able to swim over cinema trips.
On other hand for example, he wouldn't allow our children to go abroad because it wasn't fair on his eldest.. his ex wouldn't allow it.
After over 10 years in the family courts and finally getting residency those issues doesn't exist any more but the dynamics were different then, and are different now from years ago due to the difference in circumstances.
He's a lot less involved as he was with the eldest in a lot of instances but it's because in reality we are sharing the load. For example the reason I do the homework etc and not him is because we do it straight away so we don't have to worry about it and he's usually at work when it's done. I don't see the point of saving it for when he's home.
It use to annoy me massively. At one point I felt like he loved our children less. But it wasn't because of that. He loves them equally it was because crap situation at the time.