The bottom side will bow out together, replaced by the previously announced/rumored duo of Nico Hülkenberg and Gabriel Bortoleto.
Guanyu Zhou's performance has been practically zero lately, the Chinese driver failing to display any of the qualities that F1-level drivers can generally claim as their own. Valtteri Bottas's light has also been out for some time now, the Finn perhaps a bit broken, so the decision by those responsible for Stake is completely understandable.
“Following our sincere and open conversations with Guanyu Zhou and Valtteri Bottas, we have come to the conclusion that the collaboration can no longer continue, the conditions cannot be met, and we have therefore decided to part ways. At the same time, we want to emphasize our deep gratitude to both of them for what they have done for the team over the past three years. They are true professionals who handle success and defeat with their heads held high, and who, with their experience and enthusiasm, have greatly supported the team in becoming stronger and more competitive.” - the team statement reads.
So, quietly, two races in Formula 1 have ended, as we don't see much chance of these names ever being on the grid again in their lifetime.