I’m actually surprised to see how little time they’ve spent near any of my heat sources. Where did this 95 degree concept come from? Most websites recommend consistent 95 then lowering 5 degrees per week. Mine were very content in 80 degrees today. I don’t think I saw any of them go under the plate.
I have always raised chicks with one small area about 95 degrees, or sometimes warmer yet. Since I used a heat lamp, that warm space would be surrounded by some less-warm space, with the temperature decreasing as they got further from the heat lamp, preferably in a brooder so large that the far end is not being heated at all. I haven't bothered with the fuss of adjusting the heat lamp to lower the temperature. With a large enough brooder, and one warm corner, the chicks will lower their own temperature as they grow, by spending more time away from the heat.
What I have done is pretty much what everyone was recommending when I first started raising chickens a few decades ago: 95 degrees directly under the heat lamp, usually with some diagrams of chicks clumped (under the lamp, they need more heat; away from the lamp, they need less heat; scattered all around, the temperature is fine.) The advice usually included lowering the temperature (of the warm area) by 5 degrees each week (by raising the heat lamp.)
Now it seems that the common advice has changed. Some advice says to use a brooder plate and no heat lamp, while some others think chicks need 95 degrees all over, the exact same temperature at all parts of their brooder. A consistent warm temperature might be appropriate for a farm with thousands of chicks, but for most people raising small numbers of chicks it does not work well. It is MUCH easier to have one place warm enough (or even too hot), and lots of cool space, and let the chicks move around to find the temperature they want at any given time. Chicks are quite good at that.
For comparison: a broody hen is warmer than 95 degrees, she never lowers her temperature, but she does not heat the space around her. So the "natural" way of raising chicks is for them to have one warm place (under the hen) and everything else at whatever temperature is normal for that season & climate. Providing a brooder plate, or a heat lamp in one corner of a large space, is a fairly good substitute.