Does MacOS 11.5.2 log mains failures?

If a MacBook Pro (16-inch, 2019) has its charger plugged in and the mains power goes off and back on, is that recorded in any log?

Located in /private/var/log/powermanagement/ there are, e.g., 2021.09.17.asl files that will contain entries, e.g.,:

15:57:00.586812-0400    powerd  Summary- [System: PrevIdle DeclUser kDisp] Using Batt(Charge: 100)

As well as, e.g.,:

15:59:18.910800-0400    powerd  Summary- [System: PrevIdle DeclUser kDisp] Using AC(Charge: 100)

Which in my case shows when I last switched from battery to AC power yesterday when I was testing something I needed to be on battery power for.

Note that these logs were viewable in Console when I double-clicked them in Finder.

Notes:

As these files are binary and one could grep 'Using Batt' on them, while it would return e.g. Binary file 2021.09.17.asl matches, nonetheless, one can use syslog instead of Console, e.g.:

syslog -d /private/var/log/powermanagement/ | grep 'Using Batt'

To get output, e.g.:

Sep 17 15:57:00 [edit]-MacBook-Pro powerd[111] <Notice>: Summary- [System: PrevIdle DeclUser kDisp] Using Batt(Charge: 100)

^{I too am using a MacBook Pro (16-inch, 2019).}