It took some time after updating my M1 MBA, but it suddenly would NOT recognize My 32" LG 4K monitor via USB-C. I tried all the usual tricks with no luck. Finally, switching to HDMI fixed the problem. But if this is an issue with the Mac Studio and its single HDMI port, it's going to be a real problem for me. When the Mac Studio finally gets here, that is.
Apple often has had bad dual-monitor support, which hurts because I have always used 2 or 3 monitors in the last decade or so. I knew someone at Apple who did likewise, and refused to upgrade his OS any more, after 2 years of broken dual-monitor support, because he didn't want to go through the frustration again. I'm finally at the point where my 2015 iMac *finally* works right almost 100% of the time with an extra monitor, but it's taken years of updates for it to have finally gotten to this point.