The dimensions of the handle should be small to indicate a draggable object.
The dimensions are very large, looks like a visual glitch.

As far as I can see, this commit https://github.com/mozilla-mobile/fenix/commit/b5635763357578967f3c486dca679739fcf503cb changed the
private const val NORMAL_HANDLE_HEIGHT = 3
(https://github.com/mozilla-mobile/fenix/commit/b5635763357578967f3c486dca679739fcf503cb#diff-e2de4b768816f0d0beea898195bce335L583)
to
<dimen name="tab_tray_normal_handle_height">11dp</dimen>
(https://github.com/mozilla-mobile/fenix/commit/b5635763357578967f3c486dca679739fcf503cb#diff-e4590692aa6da9dc0da05cbe72efa571R175).
Reproducible on Nightly 9/21 with Samsung Galaxy Note10 (Android 10) and Pixel 3 (Android 11).
Verified as fixed on Nightly 200923 06:02 GV 82.0a1 from 9/23 with Samsung Galaxy Tab S3 (Android 8).
Most helpful comment
As far as I can see, this commit https://github.com/mozilla-mobile/fenix/commit/b5635763357578967f3c486dca679739fcf503cb changed the
(https://github.com/mozilla-mobile/fenix/commit/b5635763357578967f3c486dca679739fcf503cb#diff-e2de4b768816f0d0beea898195bce335L583)
to
(https://github.com/mozilla-mobile/fenix/commit/b5635763357578967f3c486dca679739fcf503cb#diff-e4590692aa6da9dc0da05cbe72efa571R175).