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1 year agoPress in the middle of the comment you want to reply to. Or go to settings, look and feel, and enable “show action bar by default for comments”. In your screenshot it seems you have that disabled.
EDIT: Sorry wrong answer. Your’re on Brave. Thought you were using Jerboa :)
I was trying Jerboa options (new here too), and deleted my post. Just posting again, because an user sent PM saying it helped. In Jerboa, options, look and feel, enable “show action bar by default for comments”. As an alternative, long press in the middle of the comment. It will show option to reply.