Those compact cameras with a built in lens still funded the R&D for the expensive cameras. They can all run the same OS and software, etc. Smartphones have cont

Those compact cameras with a built in lens still funded the R&D for the expensive cameras. They can all run the same OS and software, etc. Smartphones have continuously chipped away at the bottom tier of cameras to the point where even hobbyist photographers use smartphones. And only the absolute top tier of very expensive cameras still exist.