Is anyone else’s LO not doing much in terms of milestones?

My LO sits and rolls from back to tummy. But doesn’t weight bare or crawl. Also very little babble and minimal consonants.

Not seeking medical advice as it is being looked into by a Paediatrician. Just looking for hope that a bub can be so far behind and not have ongoing issues. I know I shouldn’t compare, but I get more and more worried seeing so many of your LOs crawling, standing and walking. They’re all adorable though, I don’t mean anything negative towards the photos.