The Xiaomi Mi 10 is undoubdtedly a great phone. Arguably the best camera on any phone (I didn't see any difference with the Mi 10 Pro so opted for the Mi 10 with its bigger battery instead).
However, in most regions the Mi 10/pro do not come with pre-installed screen protectors. Having used the Mi A2 which has the GG5, I feel the Mi 10 can be used without a screen protector confidently. The provided case is thick and deep, and the glass won't get easily scratched if the phone is handled with care. Just be careful not to keep it with coins or keys to avoid scratches and be very careful not to drop the phone.
GG5 by its very nature can resist even deep scratches but a little common sense will go a long way.
However, in most regions the Mi 10/pro do not come with pre-installed screen protectors. Having used the Mi A2 which has the GG5, I feel the Mi 10 can be used without a screen protector confidently. The provided case is thick and deep, and the glass won't get easily scratched if the phone is handled with care. Just be careful not to keep it with coins or keys to avoid scratches and be very careful not to drop the phone.
GG5 by its very nature can resist even deep scratches but a little common sense will go a long way.