Figured what happens! But don’t have the solution yet!
Every time Brove starts it runs the service called “Game Recordings and Live Broadcasts” (BcastDVRUserService_4c2e7) and as soon that happens the GPU starts running at aprox 38% for ‘Video Encode’ and 15% for “3D” on my Radeon RX570 video card.
Yes… It looks that now, a couple of days after my first report of this problem, the probblem actually increased from 20% to 37-39% run of my graphic card.
I should mention that nortmaly it runs at 5%. , which also happens immediately after I close Brave.
I am appending the two screenshots below.
First one is right now, running Brave: