hi is this what is called under extrusion and is it caused by a nozzle clog?

[fallow atlas]

@golden niche it looks like since some of it is printing normally, and some of it is dragging, its likely an issue with the bed level

[fallow atlas]

bed might be slightly warped

it happens a lot, even with official ones by creality, fix is often getting an autoleveler because that finds and compensates for the beds high and low points