One ui 8 for f55 are come please go and download

All phone get one ui 8 but only one phone not receive one ui 8 this is only f55 many older phone are already receive one ui 8 like a33,a73, f54 has received only f55 not receive one ui 8 i don't know why not receive

Anyone tells me why so late one ui 8 in f55 my freind phone ao6 has already received one ui 8 i don't know what's samsung do

Anyone tells me when will come one ui 8 in f55 coming or not because of all the less budget phones receive already only that phone not receiving update