Mainland people would often state that systemic discrimination is not a thing since there are 55 recognized minorities which have certain privileges. Two of the most contentious one that Han Chinese people would state are: The one child policy and the fact that minorities need lower scores to pass the standard test to get into universities. However, the first one is not a privilege no more since the One child policy is no longer a thing. As for the lower scores for entry exams, there is a caviat attached to the fact that education is often pegged to there you are born and since the reform and opening up, regions where minorities live are underfunded to the point that if you don’t perform above average in a B-tier high school, your score for entry is going to be affected to the point the free credit you get will not tip the scale on your favour.

One of the most flagrant systematic discrimination is in the rental market in my city. Some local region will often ask landlord to do extra check up on rentors’ background that is not done on local people (aka Han). It is often applied to minorities from special regions (read Xinjiang) or permanent residents (a lot of them in my cities are from Africa). Since my city has a lot of human movement it is a easy market for landlord to pick the rentors, it is often done by picking people who demands the least paperwork needed barring people from having access to rentals (their excuses are most likely a matter of convenience). You can see the effects of this kind of behaviour since there is an area of the city called Little Africa which is de facto a ghetto.

Of course, you can probably drag the landlords in court for discrimination to court and might win (if you have money, level of education and language proficiency), but the might issues still persists, why some local municipalities require background checks for certain individuals in the first place.