I haven't seen many interview processes less than 10 when we figure some initial rounds, some onsite or technical stuff, last rounds much less all the scheduling in between and the desire for everyone to meet during the work day when you are also working

a takehome can easily be 10+ hours

onsites have gotten a bit shorter since they went remote, but are still a lot. Let's say 8 hours. That means 5 companies, a whole work week to fit into full work weeks..