On Ark Mobile, Pulmonoscorpious is not effected by Oviraptors Egg laying Buff.

I tamed Oviraptor just for that to make kibble for Rex(which prefers Pulmonoscorpious Kibble), but i was disappointed after i did not see Egg symbol above my Scorpion.😢

So if you are taming for just that, then dont tame, else its very useful tame to get Eggs Faster.

🌟Normally Female Dinos lay eggs by interval of 17 mins, but Oviraptors Egg lating buff makes them lay egg in 11mins 20sec (source, Ark Wiki).🌟