Maybe let her read a book while she’s on the potty to encourage her to stay on there longer.

give her a little more time but she will work it out. maybe she is just more playing around at this stage vs actually trying to learn.

Maybe she isn’t ready for TT just yet?
In the beginning I used to read books to my daughter while she sat on the toilet, we sang songs, tried bribing and pretty much everything haha She just got the hang of it in her own time. Maybe give your daughter a little more time and see what happens? One thing I’ve learnt is just because everyone else’s kids may be training or trained at that age, doesn’t mean that your child should be too. They all do it in their own time. Good luck