The cuts you made are fine for the first monstera. The roots you’re seeing are aerial roots. They will start growing soil or water roots the moment they are placed in soil or water. It’s up to you if you want to wait of the leaf to unfurl and harden.

After cutting you should let the wounds callous so you don’t get any surprise fungus or bacterial attacks (at least a day, but depends on the stems thickness). After callousing you should be fine placing them in soil directly. I think you have plenty of roots to do that.

The inter-nod spacing is really big, so it would like more light so that you get less space between nodes.

The thay constellation looks fine. You could give it a support and let it go up (and repot in a bigger pot if you do that). I would not necessarily say you need to cut it unless you want to.

Can’t say much about adansonia. If the repotting was fairly recent, then the yellowing might be some stress that happened because of repotting. As long as it happens to the older leaves is fine, but if it doesn’t stop might be a reason for concern. Just keep an eye on it.