Different amount of new cards for different decks

This question has undoubtedly been posted but the answers seem vague. How do I change the number of new cards that different Anki deck will default to showing? So basically, I’m trying to make it so that one deck gives me 10 new cards a day, while the other gives me 20, depending on what I feel I need to study that day. Thank you.

The solution is to create a new deck options group or a preset from the deck options screen and customize it for your deck. There is good documentation about how to do that in the manual. Please see Deck Options - Anki Manual