You could install the 32bit version that is directly released on the Microsoft site, but if the 64bit Windows & Drivers for these boxes any indication... You may need to go driver hunting for the 32bit drivers. Actually would recommend 32bit driver hunting firstly, before finally making the switch.
However, 64-bit versions have a number of useful security features that 32-bit versions of Windows just don't have. You might want to choose carefully.
Beelink GT1 Mini (95X2) w/CoreELEC & Android 9 (Pie)