No
Their eyes aren't even secret (not the byakugan anyway), and I'd doubt they'd even care. It's not like the byakugan is their most coveted eye anyway. Kaguya and Momoshiki barely used their byakugan eyes in battle. Toneri stole Hanabi's eyes for the sake of awakening the tenseigan, not for the byakugan's power. Heck, on the moon, the people literally gave up their byakugan eyes to power the tenseigan altar. This happened so much that Toneri was said to be born without eyes (either that or his were taken at birth).
Anyway, it is implied that they have a culture of hunting down and harvesting chakara fruit, so it is likely that a number of them have eyes on the level of:
Rinnegan
Sharingan
Tenseigan
Jougan
Rinnesharingan
etc...
If so, then byakugan wouldn't be seen as being that strong or coveted.