I wouldn’t say so, on my last system I never had problems with 2 different brands. I did that with 2 systems I have and overclocked the ram with lower timings 1866 9cas. The ram supported speed was 1600 10 cas. Like I said the speed is only an issue if you’re doing some ram intensive tasks such as photoshop. Gaming is a non factor. My roommate gets 60fps+ max settings with a ryzen which is super ram sensitive and he’s doing completely fine with outdated bios(before ram fix)