Often there are missing schematic symbols, scrambled PCB footprints, and plenty of other problems. Thankfully [shabaz] shows how to import EAGLE projects into KiCad 7 and fix the most common ...
An Eagle to KiCad ULP exists, but it only converts the schematic, albeit with errors and hence not too helpful. And for quite some time, KiCad has been able to open Eagle .brd layout files.