Hi @Delaney_Baie_Pridham if you are a member of a card or you are watching a card you would get notifications related to that card, or if someone @ mentions you or creates an @ board mention.
This article gives a lot of great information so that you can tailor your notifications:
Let me know if this helps.
@Delaney_Baie_Pridham every time you comment on a card, there is a little checkbox, checked by default until you uncheck it (you only need to do this once) that watches the card. This is typically how people end up watching cards when they didn't intend to.
You can also watch lists, and boards. That's how you get notified in Trello, watching stuff. When you get added to a card as a member, you automatically watch it, too.
My integration BenkoBoard automatically unwatches any card you're added to so you only get notified about being added to a card, mentioned in a comment, and removed from a card, and all those notifications are aggregated in a single board:
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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