I can answer that question too. I tried Spigen, Torras and WSKEN.
Spigen this year is quite off. Sometimes they are not even straight and at all the time, you can see and feel it is quite far from the bezels from the iPhone.
The Torras are great on paper. They also feel very nice and have an amazing oleophobic coating with not much fingerprints. But the black borders of the Torras are unfortunately covering the screen of the iPhone 15 Pro Max. So you’ll miss some pixels.
The WSKEN have a very nice and clever installation process. It is also covering edge-to-edge, but with a few mm away from the edges of the iPhone, so you could use a case. At the top, there’s a small part of the screen protector a bit bigger, so it comes to the speaker more. This is not an issue in daily life and the touch and feel of the screen protectors are great. Not covering a part of the screen, so you will see everything. It is like they are not even there.
My top 3:
1: WSKEN
2: Torras
3: Spigen
Torras is aware of the borders of their protectors accidentally covering the screen. They probably will resolve this problem in a few months. I would definitely recommend Torras by then, as the coating is a bit better than the WSKEN. But for now, the WSKENs are the best you could get.