Does Late-Night High Intensity Training Actually Wreck Your REM Cycles Like Everyone Claims?

I have been experimenting with my training schedule lately, mostly because my job keeps me tethered to a desk until 7 PM. Usually, I hit the gym for a heavy lifting session around 8:30 PM, but I've been reading so many conflicting reports about how the adrenaline spike and core temperature rise completely ruin deep sleep onset. To be honest, I feel like I sleep like a log immediately after a brutal squat session, but my Oura ring data suggests my recovery score is actually lower compared to my rest days. Is the 'post-workout glow' just a false sense of relaxation masking internal physiological stress? I’m genuinely curious if any of you endurance athletes or fellow biohackers have found a sweet spot for evening workouts, or if I am just sabotaging my own neuroplasticity for the sake of an extra set of deadlifts. Do you notice a hard cutoff time where exercise stops being restorative and starts being a sleep-thief?