The app scans the message text, any embedded links, and the links and labels on inline buttons for these address patterns. Trading channels often hide the contract behind a Buy or Chart button, or drop the address straight into the button text, so those are picked up too.
Maestro Scraper also recognises Uniswap v4 pool links - the newer 64-character
0x pool IDs - from any site. A v4 pool shared as a link is detected and forwarded like any other address, where before it was missed or read incorrectly.