Well, I might be making some spoilers, but unless you've been living under a rock, you would have probably already heard.
Looking at various news outlet and reviews for Black Adam, it is confirmed that Henry Cavill will cameo as Superman in the post credit scene. It is also confirmed that the DCEU will be restored via Henry Cavill's return to the role of the man of steel. I guess I'll be watching this after all, which means Henry Cavill just saved this movie for me.