There are more than one frequency domain resource allocation types in uplink, both in LTE and NR.
Some are more common and popular than the others.
The “popularity” is a matter of which type serves best the purpose of coverage or capacity, though also a matter of UE capability, i.e. whether UE supports certain less common type or not.
Read this article to learn more about uplink resource allocation types per RAT and practical implications of them in terms of how and how many resource blocks are allocated in uplink for a UE.