I've ended up with a bunch of different packs for all kinds of uses due to apparently being an autistic gearfag.
For long wilderness hikes I have the Osprey Xenith 105l:
https://www.outdoorgearlab.com/reviews/camping-and-hiking/backpacks-backpacking/osprey-xenith-105For larping in the local woods with axes and shit I use an old Norwegian military rucksack:
https://www.varusteleka.com/en/product/norwegian-rucksack-with-steel-frame-surplus/13339For shorter hikes I use a Deuter Futura Vario 50:
https://www.deuter.com/pt-en/shop/backpacks/p33770-hiking-backpack-futura-vario-50-10And for dayhike, MTB etc. uses I have an Osprey raptor 6.
https://www.rei.com/product/847139/osprey-raptor-6-hydration-pack-100-fl-oz-mensOnly the Xenith was bought new, the rest of them I found slightly or moderately used for really low prices. I like all of them in their intended uses, especially the Xenith. It makes long hikes a breeze.