There are rules in the EU that allow newer devices only 0.5W or 1W standby power, so basically we have to thank the EU that standby devices don't kill us by thousand cuts. I recently bought a device to measure my power consumption and most devices (e.g. monitor, TV, receiver, coffee machine) only use 0 to 0.7W when in standby, so definitely negligible. However, my dvd player uses 3W in standby because it's from the 2000s (before this EU law).
btw. next to my washing machine and dishwasher the device that uses the most power over time is my 42" plasma tv (from ~2008) with 150-200W. My 32" monitor only uses 22W. My PC uses 40-60W when browsing or watching movies. 200W when playing Elden Ring.
I think it's worthwhile to check your power consumption. If anyone still has not changed their lightbulps to LEDs, please do it yesterday (a change from 40W to 10W is HUGE).