Thanks for your video, it was interesting and informative.
My primary carry is a Glock 19. I did recently buy a Glock 44 and I love it. I like that it's the same size as my Glock 19, but I have Ameriglo sights on it, and have the stock Glock sights on the G44. I don't like them particularly and if I ever thought I would use this gun for anything but target shooting I would have to get some different sights.
I have put a couple of thousand rounds through it and had only one or two fails to fire and I think one fail to feed with it. I do not put any special attention to loading magazines and have not had the problems that some people seem to have with that. Mine shot high and left from the factory and the adjustable rear sight was able to center it. I did do some work on the sights that helps me aim by painting white line across the top of the front and rear sights. That really helps me get the right sight picture. The trigger on it is heavier that my Glock 19 which kind of surprised me a little bit, but it's not a bad trigger.
I can get pretty accurate results with it at 15 yards. Picture is at 15 yards and target center is 1.5 inches in diameter and across the red is a little over 5 inches.