MeetingPlz for Chrome

Three steps. It takes under a minute.

1. Download and unzip.
   Download the extension (.zip)
   Double-click the zip to get a folder. Keep that folder somewhere permanent.
2. Open the extensions page.
   Paste chrome://extensions into the address bar, then switch on Developer mode (top right).
3. Load it.
   Click Load unpacked and choose the unzipped folder. Pin MeetingPlz, click it, and sign in with Google.

Works in Chrome, Edge, Brave and Arc.