I was just going to post the same link
After I watched the video of this poor little boy I did more research about car seats and it became very clear that moving LO into a front-facing chair too early is extremely dangerous. Rear-facing is def the safest option and they should stay in it for as long as possible. You get the ones that hold up to 10kg and those that hold up to 13kg. It doesn't matter if the legs are hanging over the edge but it is important that baby's head is still fully supported. If that's no longer the case baby can graduate.
I was also considering to move LO into a front-facing chair earlier as she hates her infant seat and screams blue murder, but her safety comes first and I rather have her get a little tantrum than having her neck broken.