I think you could lose your mind doing this. In my garage I have a few pots of various screws sorted by the material they’re made of.
I keep entertaining the idea of sorting them by size, for example, one pot for M8 nuts, bolts, screws, etc. just because it’s obviously easy to tell the difference between a nut and a screw, but not easy to tell the difference between an M8 nut and an M10 nut.
Most stuff just goes in the recycling though.
There are others that aren’t Chinese but nothing anywhere near the price bracket you’ll get from GL.Inet. I wouldn’t trust them either, I’d just take the hit and lose the app. Since it’s OpenWRT I wouldn’t be surprised if there’s an alternative to the apps. Flashing standard OpenWRT to them is really easy, you just download it from the site and flash through the firmware upgrade option, no dramas. Many VPNs will have instructions on how to set up their service on OpenWRT.