So Ive been building PCs for like 15 years now and usually I know exactly what panel I want but Im hitting a wall trying to find one monitor that just works perfectly across everything. I have a Mac Mini for work and a custom PC for gaming and I need one display that handles both without the scaling looking like trash. My logic was to go with an Ultrawide but then I started worrying about the aspect ratio support on the older Linux box I occasionally boot up.
Ive narrowed it down to a few needs:
Got about $600 to spend before my next big project starts here in Seattle on Monday. Kinda stuck between the LG stuff and maybe a BenQ...
I tried an ultrawide once and it totally messed up my workflow with older gear. Be careful with those weird aspect ratios. The LG 27GR93U-B 27 inch Ultragear 4K UHD 144Hz worked way better for my Mac. Make sure to use a high-quality cable tho, because mine kept flickering on Linux... kinda annoying. Quick tip: stick to 27 inches to avoid scaling issues on the Mac Mini.
To add to the point above: the scaling issues are real, but the bigger hurdle for your older Linux box might be the DisplayPort handshake. I ran into a massive headache where my old workstation wouldnt even post with certain high-bandwidth cables on newer 4K panels. It made me super cautious about port compatibility. I would suggest looking at the LG 27GP950-B 27 inch Ultragear 4K UHD 144Hz because it handles color calibration really well for the Mac side of things, though you have to be careful with the firmware updates. On the other hand, the ASUS TUF Gaming VG28UQL1A 28 inch 4K UHD 144Hz is a solid contender since it has HDMI 2.1 for the newer PC while still playing nice with older DP 1.2 signals. The LG usually has better out-of-the-box color accuracy, whereas the Asus feels a bit more reliable for switching between different OS environments. Just make sure your $600 budget covers the taxes because these specs usually sit right at that limit.
Building on the earlier suggestion, that DisplayPort handshake issue is a massive headache. Honestly, it is so disappointing that even with a $600 budget, you still run into these basic connectivity bugs. I have had issues where a screen works fine for weeks then just decides it doesnt like my older hardware anymore... super frustrating. My biggest warning is actually the input switching reliability. When you are jumping between Mac, PC, and Linux, the controller board inside the monitor gets confused way too easily. I have seen screens that just hang or require a hard power cycle because they couldnt handle the different refresh rates coming from three different machines. It is not as seamless as the brands claim, unfortunately. Just make sure whatever you grab has a solid return policy because those firmware glitches are basically a roll of the dice.
Just saw your post and honestly, I have had a rough time trying to find that one size fits all display. Like someone mentioned, the scaling is where it all falls apart, especially on macOS and it can be a total headache.