Using google sites like gmail, drive, and calendar work fine, except that in the tab bar (in all modes), the favicon shows up as the generic google logo, instead of the unique gmail, drive, and calendar logos.
This happened as soon as I opened any of these websites and logged in through my google account. This issue does not occur in safari, and the correct favicons are displayed.
The tabs should be showing the appropriate favicons for gmail, drive, and calendar as they are currently indistinguishable for me when pinned.
Version 0.99.130.1-beta
Sequoia (15)