I rarely use my personal laptop at my desk, I use it on my lap in front of the TV unless I have a specific need for external displays. Last night, I went to use it at my desk.
Hardware: The same USB-C dongle, two ultrawide and single FHD monitors as ever.
Software: Fully updated @opensuse #Tumbleweed with #NVIDIA drivers.
This all "just worked" last time I used it. Now, I can only use enable one ultrawide at a time.
I shall dig into logs later.