Nice idea, especially for people who live in browser tabs all day.
The first thing I’d test is the “share” output across different destinations: Teams, Slack, email, plain text, maybe a clean markdown version. Same URLs, but the best formatting is different in each place.
Also consider a tiny preview before copying — title, domain, and maybe one optional note per link. That would make it useful for meeting prep, not just a bulk URL dump.
And since this is a Chrome extension, I’d keep the permissions story very visible. People get nervous when a simple utility asks for access to every page.