Why would you ever mix the SNAPSHOT isolation level with an UPDLOCK?

[The documentation](https://learn.microsoft.com/en-us/sql/relational-databases/sql-server-transaction-locking-and-row-versioning-guide?view=sql-server-ver16#update) points out that you can use UPDLOCK hints while running a transaction under the SNAPSHOT isolation level. [This more obscure documentation](https://learn.microsoft.com/en-us/dotnet/framework/data/adonet/sql/snapshot-isolation-in-sql-server?redirectedfrom=MSDN#using-lock-hints-with-snapshot-isolation) shows an example. However, I cannot think of any use case! This is my question: Why would you ever mix the SNAPSHOT isolation level with an UPDLOCK? The two big alternatives that come to my mind are simply using a pessimistic isolation level or using the READCOMMITTEDLOCK hint.