I've been looking for backpacks for a while and stumbled on these snowboarding/skiing backpacks and wonder if anyone has tried using them or similar bags for more than a few day long trips:

• https://www.patagonia.ca/product/snowdrifter-ski-touring-pack-30-liters/48197.html?dwvar_48197_color=BLK&cgid=luggage-backpacks-technical
• https://www.burton.com/ca/en/p/burton-ak-dispatcher-35l-backpack/W22-227981.html
• https://www.decathlon.ca/en/backpacks/309446-61497-fr500-defense-freeride-backpack.html#/demodelsize-200taille_unique/demodelcolor-8587041?queryID=18f641e084d862e5e953505eb4343e5c&objectID=4031194

What I like about them:

• Multiple buckets, so you get more default organization
• They come with hip belts (and load straps on bunch of time)
• Plenty of hoops to attach items externally
• hydration sleeve that could act as laptop compartment (tho might be too small)

What I'm not sure about:

• Back panels don't look breathable, as you're assumed to be wearing a jacket doing winter sports. I would be using the bag all year around, so this might become problematic.
• Straps may also not be as comfy, since you're assumed to be wearing a jacket too
• Using them in hot weather times due to the above 2 points
• Not sure how well they do against water. They're designed to shed snow, but can they handle rain?

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What are you thoughts and what have been your experience wearing such backpacks? What factors about using these backpacks am I missing?