Same I just use the one my ISP gave me now it works great no fuckery. Back in the day there were real benefits to flashing over the stock one, not so much now. I think a lot of the 3rd party firmware actually performs worse than stock these days, unless it’s for an older popular model ?
Before I got fiber I liked GL.iNet routers. Nice easy GUI up front, but it’s OpenWRT under the hood so if you want to do some weird advanced stuff you can without any flashing.
Yeah they’re about 20 years old now, had a pretty good run. Might still be able to find something to flash on there that’s still considered secure ?