Edited:
It is kind of difficult to understand. For example, "SPS LP increased for free in the absence of dividend to UST" is subtle. I would say "NWS was only stopped for a short time: Starting 2019, Fannie and Freddie were allowed to keep their earnings to build up capital. But since Jan. 2021, dollar-for-dollar, their retained earnings are added to government's "off-balance-sheet" SPS equity (i.e. Liquidation Preference). When things resume normal, Fannie and Freddie are required to pay 10% of their LP as dividend. NWS payments were deferred to a later date.
(It's not easier to read now, but at least correct.)