My new house/new liftmaster came with "MyQ" wifi, which is a sad joke. It sends me notifications when the door opens and when it closes, mostly many minutes (10?) after the event. I also have their camera, which was cheap at $35 but is nearly useless since the reason the door opened or closed is long since past. Of course they would really like to sell me a subscription where the video is recorded to the cloud and I can review it. I don't do subscriptions. Eventually I will probably buy a camera that records on site and I can review for free but I have lived a long life with no garage cameras at all and it seems to be working out.
The Liftmaster is belt drive and very quiet. I like that. Its light beam blockage sensors are on the floor at each side of the door, very flimsy and easy to knock out of alignment. I'm sure I will come to hate them and eventually disable them.
"Bracket on the garage door" Hard to believe that can't be repaired or drilled for a larger screw. Local welding shop might be able to help, too. Pictures?