Version 1.31.88 Chromium: 95.0.4638.69 (Official Build) (64-bit). Linux Mint 20.2 Cinnamon.
Brave browser will not start at all if you use sleep (suspend) mode.
How to reproduce “bug”: When finished browsing using Brave, close the browser by clicking the “X” in the right corner. Select the mint menu in the lower left. Then, select “Quit” then “Suspend”.
When computer awakens from sleep, try to run Brave. It only produces a spinning “beach ball” and then nothing. Firefox does not have this problem.