What use cases do you have in mind?
I love Todoist, but pen&paper to-do lists work better.
Qigong and weight-lifting is a life-changing routine for my focus.
Do you drink coffee? Stay away from Robusta and add Matcha to your routine.
If you need to ask this question, then ship small to your audience first.
UI Component Names can be quite fluid.
Shopify Polaris Design System calls them "feedback indicators"
https://polaris-react.shopify.com/components/feedback-indica...
Carbon by IBM calls them notification https://carbondesignsystem.com/components/notification/usage...
You should read these two guides.
And try to find a common ground with your team.
If you want to dive into how to design for glance. Recommend Stephen Few's books.
Comic Sans is too distracting though. Try DM Sans, Inter, Work Sans for the minimalism feel.