Lmao you're an IT guy, right? Get yourself a Raspberry Pi 5, PCIe adapter and a second hand gigabit Intel NIC. Slap a case on that, put OpenWRT on it and bam! High performance, high quality router built from trustworthy parts running open source operating system. Not the prettiest and simplest solution but at least that way you don't have to depend on Realtek chips and Chinese firmware.