During the past several years, CES used to be the place where Sony announced sales figures for their PS4. This year's CES came and went without Sony announcing any PS figures, so one has to ask if there has been nothing to brag about this year.
In December Sony announced that the PS5's launch was bigger than the PS4's (measured in a timeframe of the initial couple of weeks), but ZhugeEX recently tweeted that PS5 shipments have fallen slightly behind the ones of the PS4 over the timeframe from launch until the end of the year (November + December 2020 vs. November + December 2013). Sony's lack of announcement of new PS5 figures can be seen as backing this up. Similarly, the sell-through numbers we've seen from Japan and Spain point towards low shipments, although the possibility remains that other countries have been prioritized by Sony.
Nevertheless, it looks like Sony's original goal of having more PS5s available by the end of March than PS4s in the comparable launch-aligned timeframe has run into at least small problems, because we've yet to hit the point where initial PS5 demand has been satisfied.
There's not much to discuss here in particular, because this is first and foremost just an observation of the latest information that we either got or didn't get. Some controversy is needed to get something more going, so I'll throw this out:
Is Sony using Nintendo's strategy of artificial scarcity?