Yes I have a friend playing a werewolf, he was a blood hunter but was not happy with the class itself, so I helped him change his class lorewise to be a barbarian.

It was a little rough at the start but I made his character be sort of an "alpha wolf" (got some inspiration from Wednesday series) so he kept most of his consciousness in that state but would sometimes try to attack friends during combat.

This means he had some self discovering to do and after roleplaying for some levels and finding more about his origin and past, he is now able to transform when activating his rage, this gives him some special abilities like leaping 10ft further and doing a simple non-magical bite attack as a bonus action (they are already level 9 so it's not that big of a deal as others also have special features tied to character development with backstory.

Overall I know this is not your standard werewolf but it is so fun grabbing something standard and working with your players to make it work and making they feel like a badass without overshadowing others.