You don't need to browse my timeline to look for past tips, they are all listed on my website at:
The "Quick Start" section at the top of the front page of the website is especially suitable for new people. It has the guides to all the basics.
If you scroll down past the quick start, you'll see the full contents of the site divided up into themed sections.
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NERDY BONUS TIP: Mastodon also supports several rare non-web types of link including gemini:// dat:// dweb:// gopher:// ipfs:// and ssb://. The "Gemini" link type is nothing to do with AI or Google.