You completely missed the point of what I said. I have a Linksys as a cheap backup in case my real router (Netgate / pfsense) dies. The Linksys is running OpenWRT and hopefully I'll never need to plug it in ever again.
I had to verify that OpenWRT was compatible when I bought it _to be a backup_. Re-read what I said about everything being commodity hardware that can run any other device firmware / OS.