I'm unsure if this will help anyone, but on my laptop, in Device Manager, Windows 11 had disabled both of my Display adapters: AMD Radeon(TM) Graphics and NVIDIA GeFore RTX 3060 Laptop GPU. I right-clicked on them and clicked Enable, and instantly my monitors connected again.
For me, I don't think an update caused this, but rather I was already connected to my monitors, and then they suddenly disconnected. I'm not sure the cause. Hope this helps someone.