A:Answer It is not a MAJOR problem, but it is about an 8% problem.
Yes, it is still a lottery. Look for serial number starting in N. that will be 2022 version.
3 types of ram for this, Samsung 1rx16, Hynix 1rx16 (but! fast secondary timings, was it an error on the sticker on the RAM /shrug), and Samsung 1rx8.
Keep in mind, even other brands are doing this lottery of ram.