Pushover Usecases

Hello guys, just recently purchased Pushover for my phone. (Similar to Ntfy, Gotify, Notifiarr)

Any tips on how to utilize and maximize it? Forgive me, I'm just a newbie to the selfhosting scene.

By the way, these are the apps/software I usually use on my phone aside from my open source softwares:

Google Apps, Microsoft OneDrive, AWS, BackBlaze, Reddit, 9GAG , YouTube, YouTube Music, Netflix, Shopee, Merlaco (Electricity Provider), PLDT (ISP), Instagram, Facebook, Mi Home (Xioami IP Cam), Joplin, Grab, Telegram, WhatsApp, Discord, NextCloud, Figma, UpWork, Taskade, Fiverr

Sorry for the noob question, just wanted to know how y'all utilize notification services/uses.