A full day is a lot unless you get compensated or something for it I feel. In today's world it is a lot of ask. I could also not be spending any time there, in which case that day is wasted. Imagine if all interviews of all your applications took a full day… probably burn off half your PTO just interviewing…
It sounds like the unemployed programmers have an advantage over the employed, when interviewing at 0xide.
Most employers view employed candidates are much more valuable compared to unemployed candidates. However, Oxide isn't "most employers".