Big Sur freeze issue/bug (facetime)

since i updated my MacBook Pro to the Big Sur OS, i've been experiencing a lot of freezing. especially while facetiming, when my computer said the connection is poor, my entire laptop froze, and i can't do anything for a couple minutes. really annoying and very unnecessary. sometimes my laptop completely malfunctioned, and i had to manually force reboot. please fix this.
Big Sur freeze issue/bug (facetime)
 
 
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