Is it normal for adult beetles to go days without eating or resurfacing

[Ink Eater]

crossposted from health bc idk which of the two threads this would belong in

i got a male ox beetle recently; he arrived about three days ago after two days on the way (it got extended by a day due to unexplained reasons). once i put him in his new enclosure upon arrival, he immediately dug down into the substrate and hasn't come out since. i'm new to beetlekeeping, so i don't know if it's normal for them to spend multiple days hiding underground. i'm just kinda concerned cause he hasn't had any food since he was sent my way :[ (though it might just be my GAD that's worrying 💀💀)

[akivisuals]

My females dig down into the substrate and can go days between feedings.  Hopefully they're laying down there though.  I don't normally have them in flake if they're in a normal enclosure.

[Ratmosphere]

Totally normal!