D. Sevigny says a lot about G44 sights at
https://sevignyperformance.com/2020/...-new-glock-44/
Although I have read of successful DIY installation.
I don't know what generation the G44 mimics, but Vanek sells a trigger group for it. Expensive for polished up factory parts, but the one I shot needs all the help it can get.
https://vanekcustom.com/basic-trigger-kits/
Reportedly the Performance Trigger can be made to work by swapping in the .22 ejector..