My check was exactly the same, such a waste of time. I've just started exercising and building up slowly. You can pay for mummy MOTs/postnatal physio assessments if you have any particular concerns. There's also info online on how to check for diastasis recti yourself. I think main thing with exercise is just being mindful of core/pelvic floor and not jumping back into high intensity exercise too quickly
I have to wait until 10 weeks pp to finally get my appointment, so in the meantime I've had a mummy MOT as Hannah mentioned which was fab, and I've been doing the exercises the physio recommended for posture and core strength (post c section also). I reckon that no one knows you and your limits better than you do, so go with your instincts!
I had the same experience. They did briefly ask me if I was doing okay mentally and about contraception, and when my bleeding stopped but that was all. I think they just expect you to go back to things yourself. I was told I should get the doctors sign off before driving but I didn't need to/couldn't wait for 8 weeks!