Naps at home

My 2yr old son is hella struggling with naps at home lately. He goes to daycare 3 days a week and is home the other 2 days and the weekend. We’ve always followed the same nap schedule as daycare which is lunch around 11:30 then nap at 12/12:30. He takes 1 1/2hr - 2hr naps at daycare but at home he just straight up refuses and I’m at a loss for what to do. He’s always been great at putting himself to sleep and bedtime is still good (thank god) it’s only naps. We put him in his crib, put on his white noise, give him a stuffed animal and say goodnight and then leave the room, no issue. For naps I initially tried waiting him out and just letting him cry it out and that worked for a few weeks, he’d cry intermittently for maybe 5min before falling asleep. However lately it’s no longer working and he’ll now just stand in his crib and whine/say mama here and there and not lay down and go to sleep. Any tips/tricks? Is this just a phase, do I keep waiting him out, how long is to long to wait him out, do I try something else? Help 😵‍💫