Why are you obsessed with this form.  Forms are delayed every year.  I have not sen anyone clamoring down my door that has to report carryforward of 1/3 of their 2020 1099R's yet.  Of course there is no withholding to speak of so I am thinking they are not too exited to file anyway.  I only had about 4 that delayed reporting 100% last year.  Most wanted to get it over with in the year collected and withheld on.