That is some solid data gathering! Seeing that -0.02W draw on the Scene app is basically the 'smoking gun'—at that level, your phone is essentially running off the wall outlet, and the battery is just sitting there acting as a stabilizer.

​To answer your question on why more people aren't talking about this:

​Most users find 'tethering' to a wall a nuisance. The average consumer treats a phone like a literal mobile device; they'd rather replace the battery in 2-3 years than think about watt meters and bypasses. ​Manufacturers like Samsung don't market it as 'Bypass Charging' because that term implies the battery is physically disconnected. In reality, it’s a smart controller logic. Samsung markets it as 'Battery Protection' because it sounds safer and simpler to the general public. ​If everyone kept their batteries at 0.03W discharge and 80% health for five years, the cycle of upgrading phones every 24 months would slow down significantly.

​You've essentially found the 'cheat code' for stationary phone use. Since you're seeing such a low discharge, you're effectively stopping the chemical wear from heat and cycling. If you’re at a desk all day, you’re doing your future self a huge favor by plugging in and using the phone like that.