It probably won’t hurt to wait, as any critical security patches will be pushed to your computer regardless of weather you want them or not. It would be smart to Google your computer’s model number along with the name of the update (Win 10 1903) or the more specific update number and see if you see any reports of issues with your specific machine.
My understanding of why Microsoft’s quality control of their own software is so bad is because of it’s versatility. Windows can work on just about anything, so it’d be impossible for their team to test the software on every imaginable configuration. Even with this said, they can definitely up their game in that department.
Anyway, I hope I was of service!