To add to the point above: ive found Milomdoi 3+3 Pack Fold 7 Screen Protectors is the best value. Over the years, having spares has been a lifesaver for hiking trips.

Honestly, Ive used almost every brand since the original Fold launched. Quick question tho, are you looking for something matte to cut down on glare while you're outside hiking, or just standard clear? If you want something reliable that wont lift, try these:

• Ringke Dual Easy Film Galaxy Z Fold 7
• amFilm OneTouch Tempered Glass for Samsung Galaxy Z Fold 7 Matte is a lifesaver for outdoor visibility tho...

TL;DR: Grab the Spigen Glas.tR EZ Fit Screen Protector for Samsung Galaxy Z Fold 7 for the outer display and stick with the factory inner film for your hike! I totally get the pre-delivery anxiety! For hiking, you definitely need something reliable. I personally love the Spigen Glas.tR EZ Fit Tempered Glass because the auto-alignment tray is absolutely fantastic and makes the installation process foolproof. It stays put even during heavy outdoor activity! Regarding the inner screen, I suggest being very cautious. That UV glue from Whitestone is amazing for normal screens but kinda terrifying for foldable hinges. Instead, look at the Whitestone Dome Premium Gen Film for Galaxy Z Fold 7. It is a non-UV film that provides incredible scratch protection without the risk of liquid gumming up the mechanism. Have an amazing trip!

Building on the earlier suggestion, spares are amazing! Im not totally sure, but I think the inner bezel is tighter now... definitely check for lifting before your hike so you dont damage the screen!