Welcome!
The settings for daily limits are described here – Deck Options - Anki Manual – and in the 
tooltips in the Options screen.
I’m not sure if you’re asking about how many New cards are introduced, or how many due Review cards you are shown, but if you have any specific questions about what you’re seeing, you can ask those too.
In addition, this general advice for beginners might help guide you –
- Read Getting Started, so you know what Anki can do – and Studying, so you know how to use it. Skim the rest of the manual if you have time, so you will know where to find things when you want them later on.
- Enable FSRS.
- Set one short (5m-20m) learning step and relearning step.
- Optimize your FSRS parameters (and then come back monthly to re-optimize).
- Study all of your due cards every day – no backlogs, no long re/learning steps to carry cards over to the next day.
- Don’t introduce New cards at a faster pace that you can keep up with the reviews on. [Expect that your daily workload will be 8-10x your daily New card limit.]