No worries, I'm sure many of us will test if it made any effect and report back when the next build releasesSecure Element will no longer crash in the background, but I am not sure if that's related with Google Pay. For Google Pay to work (and I got a confirmation it works on Mi 8) you need Magisk.
Any insight on why would we need Magisk? Our device passes all checks for GPay on LOS without any shenanigans with Magisk, and on LOS 17.1 it wasnt required either. GPay tells its set up, only issue is that it actually wont work, hopefully resolved by the next build if the issue was related to Secure Element