Never been a problem if the person in front reclines. There’s still plenty of room in my first class seat.
Not sure on AA. We fly almost exclusively on Delta ETA - just asked my wife who flies a few times a year on AA to DFW. She remembers their's adjusting as well.
I tend not to, and notice when people recline back and are knowingly bumping against my knees. Obviously you don't complain or confront because mid-flight crew are basically parole officers after a positive drug test or bad call from your boss.
