What does this icon indicate?

Welcome to r/GalaxyNote9 — the un(official) and only subreddit for questions, support, photos, discussions, memes, videos, tips, tricks, updates, new findings, and essentially everything related to the Samsung GALAXY Note 9!

What is this icon at the top of my android phone?

For news, announcements, and discussions, from and about Google and related topics.

What is this android icon on the status bar

Android news, reviews, tips, and discussions about rooting, tutorials, and apps. General discussion about devices is welcome. Please direct technical support, upgrade questions, buy/sell, app recommendations, and carrier-related issues to other subreddits.