Like I said the installation is the same just without the tray.
Except it's not though. If you haven't tried an installation using a frame, which is what you've indicated, you lack the experience to say that the process is the same with or without a frame. I've done it both ways and the frame makes things a thousand times easier.
And your last paragraph is just makes everything worse because now what you are saying is you're paying $40 for a screen protector that barely stays in place and the edges always comes off.
I actually didn't say that. I said kits without an installation frame are harder to get good alignment on, and without good alignment the screen protectors are easier to peel and crack. An installation frame makes it easy to get good alignment every time.
I've been using this phone for almost 2 years now, I preordered the S10 at launch and I've used a bunch of screen protectors in that time. I've had some that lasted almost a year and others that have lasted only a couple of months before cracking. Tempered glass screen protectors for this phone are fragile, regardless of the brand. Ones that don't support the fingerprint reader are more durable, but why buy a phone with a fancy in-screen fingerprint reader if you don't want to use it?
alinsea sent me a wireless charger as a gift so....
So did Techmatte (the company behind amFilm). It was this one: https://www.amazon.com/dp/B07F45SMPG