SPAM mail received in different folders (in Big Sur)

Before Big Sur I received all SPAM that I received in 1 folder with SPAM mail. Now with Big Sur each mail account I have, has it's own SPAM folder!. Wouldn't it be more conveniënt to be able to make a "smart" folder where all SPAM mails are collected, or at least you have the possibility to do so?

Kind regards,
Marc
SPAM mail received in different folders (in Big Sur)
 
 
Q