SPAC De-Grossing?

[BG2008]

Does anyone know the typical SPAC players and dynamics in 2021?  I've been investing in the space for the past decade.  But the recent vintages have been very different than previous iterations.  A lot of SPACs have lost momentum lately.  Do people typically hold 2-3x exposure?  The PIPE features are also interesting.  Just trying to get a little smarter and figure out the players, structure, and capital flow dynamic.  

 

Thanks in advance.