RM9981,12 steps
As bbaale : systemextensionsctl uninstall 9PTGMPNXZ2 com.symantec.mes.systemextension was taking a long time and I control c out of it. And 'systemextensionsctl list' show 0 but still panic. The 'systemextensionsct reset' is the magic for me.
For anyone who also want to sleep better, 'csrutil enable' in recovery mode and everything still works.
Seems Norton Security is the deep state.
Knightsbridger
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