Yes, electric pressure cookers are becoming increasingly common nowadays.
I’m not personally a fan of Old Bay but I understand it’s pretty strong and can be easily overpowering, especially for something mild like chicken.
The other thing about any type of pressure cooking is that it intensifies flavors (as opposed to a crockpot which generally dilutes flavors more.)
Also, dried seasoning are so much stronger than regular herbs and such.
So, if it were me, I would use about a third as much Old Bay (or any other form of dried seasoning other than salt) as in the regular recipe amount for the first time I make the recipe. You can always add more if it’s not strong enough but you can’t subtract it.
I’d prefer to err on the conservative side. Too much of anything in food can make it totally inedible.
Once you do this with various different recipes, you’ll get a better sense of how much to adjust seasonings in the future.
Personally, I’ve found that pressure cooking brings out so much more of the foods natural flavoring that I definitely don’t miss the lower amounts of all types of seasonings that I typically use in recipes.