While it is possible to manually configure lower display resolutions, it is not advisable since you will lose clarity. Instead, you should increase icon and font size. Sometimes, incorrect sizing occurs because the DPI setting is wrong or not reported correctly. Which DE are you using? Which graphics driver?
I’m using KDE and the graphics driver (from lspci) is: 00:02.0 VGA compatible controller: Intel Corporation Crystal Well Integrated Graphics Controller (rev 08)
That’s a good suggestion about changing font and icon sizes.