Hello! First, thanks for using Brave all these years. Second, I'm sorry you had to deal with these issues.

For the Adobe and Forms issue, desactivating Brave Shield on the webpage and refreshing the page is an efficient solution.
For the other issue, I can recommend you submit a report on the brave support desk: https://support.brave.com/hc/en-us/articles/360018228951-How-do-I-submit-a-bug-report#:~:text=The%20best%20way%20to%20do,Brave%20Team%20staff%20to%20see.&text=It's%20built%20to%20address%20many%20common%20questions%20and%20known%20issues.

Thanks, @pboulet, for sharing this with me.
Stay Brave,
Braveflash