Has anyone tried this (or any) AliExpress brake hose: https://www.aliexpress.com/item/32899645833.html.
The real Shimano stuff is absurdly expensive. I have a used R7020 groupset to mount when I get my next frame, just need the hose.

Yeah , works fine, not the exact one you linked , but I've had 2 x 3m come over the last year and all on bikes now working fine and half the price
https://www.aliexpress.com/item/32825433906.html?spm=a2g0o.order_list.0.0.21ef1802FUrVTj

I've never tried these 3rd party hoses before but make sure you use BH90 even in applications that call for BH59. I used BH90 hoses on an old RS505 build and braking power was massively improved compared to the stock BH59 hoses it came with.

Good to know. I'm mostly worried about how it will handle full internal routing, I don't want to have to redo it for as long as possible.