I ended up having to put in an AC upstairs just to handle putting two computers (3080, 3080 Ti) into the same room. I didn't really
want to do that, but I don't have another option. (That room has a ceiling fan too.) Anyway, that references an interesting problem that I've noticed as we've gained more and more technology. Technology tends to put off a decent amount of heat -- albeit, there is a trend toward low power too -- and in the US, we have a heavy prevalence of whole-house, duct-based HVAC systems. These systems really only work when the area being cooled doesn't vary so heavily. I've been really tempted to completely redo my HVAC setup (even though I've replaced the outdoor unit within the past 5 years) to use a mini-split setup in the areas that don't get serviced well by the HVAC, which includes that computer room.
The one issue that I ran into with the window AC is that it never sealed well, and it served as a good way for Stinkbugs and Ladybugs to make their way in. It's a nice unit (
Midea U-shaped) as it's rather quiet, but its provided mount doesn't seal well around the runners.