Since we're all shilling our favourite backpacks:
I've been using an Ikea Varldens for the past 6-8 years. Very efficient for my use case (2 work laptops, groceries, travel luggage, documents and earbud case, tools). It has a couple of nice small compartments and a single large one so it's very light for the size and material. Until now the only thing that's annoyed me was the long straps when riding a motorcycle, so I ran cable ties through the loops to stop them from slapping my hands and sides. It's seen quite a bit of abuse and it's still intact. It's even practically waterproof.
I'll jump in: I was stuck in layover many years ago and bought a Topo Designs backpack -- Google says it's a 30L Apex Global travel bag.
I use it every week, it shows no signs of degradation over approximately a decade. Huge beefy zippers, tons of pockets and organization for those who are into that.
I paid like $200, but seems like they're cheaper now. Hopefully not because of the reasons in the article. At the time, I believe they were a small company from the state my layover was in--maybe Colorado.