My Pixel XL here works great for scrolling at night. I'm skeptical of the "no more system updates" boogeyman; I'd love some case studies or anecdotes about the real-world threats that using an old devices exposes me to.
It can both be true that it’s good to get security updates for old devices, and that you might have no issues using an old phone personally. It doesn’t make it a boogeyman. Things can be two things.