Well after what happened to me with the Glock 17 Gen 5, I have lost confidence in striker fired pistols. At least with a Beretta 92FS it is impossible for the round in the chamber to fire with the decocker/safety engaged.
So too with a Striker Fired pistol. What they don't have is an active safety like our 92's do. What most should and are aware of is if a strker fired pistol's trigger gets pulled intentionally or not the gun is going bang. Fingers, shirts or hoodies it makes no difference. Get any object caught on the trigger and things can and do become exciting in a hurry. The DA/SA guns with either a decocker or manual safety do add a layer of safety the striker fired guns don't.
Polymer guns do have their place both in shooting sports and for military/LEO work. For one thing they are inexpensive to make and sell to government agencies for far less than steel or alloy guns do. That is a good thing.
Take Care
Bob