I've heard this often enough that I'd repeat it as general advice, but personally I find that reading on my phone until it's falling out of my hand expedites falling asleep better than anything else, as long as it's not something that compels me to reply / take notes / data flow into the phone (a "two steps back" event). A long-ish article, not doomscrolling.
And definitely use f.lux or equivalent, which is built in these days (at least the phones I've had recently).
Me too. And my phone automatically goes on do-not-disturb prior to bedtime, so no concern of seeing a notification that gets my brain going.
The other nice thing about reading on my phone rather than reading a physical book before bed as I used to do is that I don't need a light. I have the phone brightness turned way down, and obviously use light text on black background. Helps with falling asleep and doesn't disturb my wife if she's going to sleep before me.
And definitely use f.lux or equivalent, which is built in these days (at least the phones I've had recently).