So I tested this with Chrome Canary, and yes, it does crash attempting to open Incognito tab
I've submitted a Beta Feedback ticket
(I will test this on my wife's phone, not on beta)
EDIT: tested on s21 Unlocked, non beta with Chrome Canary ... does not crash
Hello @Loucid ,
Thank you for your feedback. If you haven’t already, Please update Samsung members app to latest version from galaxy store and send us an error report immediately after experiencing the issue from the Samsung member’s app -> Beta Feedback -> Error Reports to help us debug the issue. We apologize for the inconvenience and appreciate your contribution to the beta program.
One UI Beta Team