Apples clamshell mode support is super confusing IMHO. This is once thing Windows does better at least by default. Perhaps Macs can be configured to what I expect but I personally have struggled with getting it to work in a way that satisfies me.
In general, Windows 10 computers work on boot in clamshell mode. Drivers load, external USB devices are useful, displays work.
On Apple devices, corporations *must* enable FileVault, a full disk encryption utility, to meet some compliance standards. The problem is that Apple really locked this down, even to USB-C docks. My docks use the Display Link driver to load the screens, so as a result I need to physically open the laptop every day, use the laptop keyboard to enter my password, wait for the login process to complete, then close the laptop and connect the dock.
It would be very nice if they could allow some drivers to be whitelisted, or even make an "official" apple dock with full FileVault support.
I suppose I could use a Mac Studio or Mini, but corporations seem dead set on providing laptops to employees.
Other than that I would say Windows generally handles scaling better, but this is an area that the latest OS (Ventura) really improved. Macs today are much better at scaling and switching displays than in the past.
Just fyi, at least on my M1 MacBook, a regular, non-Displaylink (ie HDMI or Display Port connection) doesny require opening the laptop to login, even using an Bluetooth keyboard. I'm sure there's a usb-c hub that's your preferred form factor if you don't like the dongle-style breakout boxes.
I don't have the issue you're referring to unless I completely shut off either machine, which I almost never do. Do you completely power off your machine at the end of each day? When the machine is just locked my external displays power up and display the login screen just fine.
Kind of unrelated but it sucks that Macs don't do multiple displays over a single cable because Apple refuses to support it in their GPU via the built-in MST hub (that otherwise is put to use for driving the Pro Display XDR).
Can't concur with this. My windows laptop is has its lid closed and is outputting to a display. Only thing I do is uncheck the default behavior of putting the laptop to sleep when the lid is closed. This should be enough. Did you do this?
There may be conditions around having input devices as well, can't recall exactly.
There also used to be a setting to disable wake up from bluetooth devices but it seems to have disappeared. (I was using that setting to prevent a DualShock 4 gamepad - which powers on all too easily - connected via bluetooth to wake the computer)