Chiming in to say that on my asus laptop, the start up button is f12! Press as soon as the first logo appears on the screen. It might take a few times to get the timing right, if you miss it just restart the computer.
It should take you to a menu that looks like a classic hacker screen (blue screen with pixilated text, no clickable UI). Then go to the boot options and select the USB.
Libredirect is great, just added it to firefox! I can finally watch all those tiktok links people send me lol
& for anyone else thinking of trying it, if a site won’t load change your default proxy instance :)