[ASUS ROG Phone 5 / 5s] twistedumbrella:
I think it might be easier to list all the protectors and cases I tried with why I did NOT keep using them to help decide what may work for you. I will also list what I liked about them in case my reason doesn't apply to you.

I do agree that the premise of Victus is not needing a protector, but every iteration of Gorilla Glass has made a similar claim. The protector is more for dirt and grease than scratch resistance. I would rather use harsh chemicals to clean a protector or simply replace it than constantly rub the screen and slowly wear away at it.

Amazon.com: ZMONE Tempered Glass for Asus ROG Phone 5 / ROG Phone 5 Pro/ROG Phone 5 Ultimate Screen Protector [2 Pack],9H Hardness High Definition Clear Scratch Resistant Bubble Free Anti-Fingerprints : Cell Phones & Accessories

Amazon.com: ZMONE Tempered Glass for Asus ROG Phone 5 / ROG Phone 5 Pro/ROG Phone 5 Ultimate Screen Protector [2 Pack],9H Hardness High Definition Clear Scratch Resistant Bubble Free Anti-Fingerprints : Cell Phones & Accessories

www.amazon.com

This protector was too large and hung over the curved edges causing it to peel within the first day or two of use, but was otherwise decent.

(6 Pack) Supershieldz Designed for Asus Rog Phone 5 / 5s / 5 Pro / 5s Pro / 5 Ultimate Screen Protector, Anti Glare and Anti Fingerprint (Matte) Shield : Cell Phones & Accessories

Buy (6 Pack) Supershieldz Designed for Asus Rog Phone 5 / 5s / 5 Pro / 5s Pro / 5 Ultimate Screen Protector, Anti Glare and Anti Fingerprint (Matte) Shield: Screen Protectors - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

This protector is a matte film that didn't stick very securely and was easily scratched during normal use, but allowed for multiple replacements.

Amazon.com: Foluu ASUS ROG Phone 5 Case, ASUS ROG Phone 5 Case Cover, Hard PC Back & Soft TPU Bumper Protective Shockproof Scratch Resistant Case for ASUS ROG Phone 5 2021 (Black) : Electronics

Buy Foluu ASUS ROG Phone 5 Case, ASUS ROG Phone 5 Case Cover, Hard PC Back & Soft TPU Bumper Protective Shockproof Scratch Resistant Case for ASUS ROG Phone 5 2021 (Black): Cases - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

This case seemed durable and hard to fall off, but felt overly bulky and limited the ability to use the triggers.

Amazon.com: Foluu for ASUS ROG Phone 5 Case, ASUS ROG Phone 5 Frosted Case, Reinforced Frosted PC Hard Back Translucent Shock-Absorption Anti-Scratch Non-Slip Protective Case for ASUS ROG Phone 5 2021 : Cell Phones & Accessories

Amazon.com: Foluu for ASUS ROG Phone 5 Case, ASUS ROG Phone 5 Frosted Case, Reinforced Frosted PC Hard Back Translucent Shock-Absorption Anti-Scratch Non-Slip Protective Case for ASUS ROG Phone 5 2021 : Cell Phones & Accessories

www.amazon.com

I liked this case overall, but the back allowed a lot of dirt under it by relying on a bulky top and bottom rim without any grip beyond the corners.

Amazon.com: DAMONDY for ASUS ROG Phone 5 Case,Shock Absorption Phone Case Slim TPU Bumper Cover Carbon Fiber Texture Design Flexible Protective Case for ASUS ROG Phone 5 -Black

Amazon.com: DAMONDY for ASUS ROG Phone 5 Case,Shock Absorption Phone Case Slim TPU Bumper Cover Carbon Fiber Texture Design Flexible Protective Case for ASUS ROG Phone 5 -Black

www.amazon.com

This case was a near identical alternative to the stock case, but didn't support the fan even with the small holes meant specifically for it.

Amazon.com: kwmobile TPU Case Compatible with Asus ROG Phone 5 - Case Soft Thin Slim Smooth Flexible Phone Cover - Black Matte

Buy kwmobile TPU Case Compatible with Asus ROG Phone 5 - Case Soft Thin Slim Smooth Flexible Phone Cover - Black Matte: Basic Cases - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

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This case felt cheap, loose, and didn't provide openings that work with the stock charger or side port cover with no real benefit.