Unwanted and un-set Alarm goes Off every day on S22 and Watch 5Pro at the same time

[Haraka]

An alarm goes off every morning at 6am on my Verizon Galaxy Watch 5Pro and on my Samsung S22.

I formerly had a 6am alarm set for weekdays, but never for every day. 
This behavior began about 2 weeks ago.

Things I've tried so far:

• I deleted ALL alarms shown on my phone and on my watch - now NO alarms are shown
• I cleared cache for the Clock app on my phone.
• I rebooted the phone and the watch

The alarm still went off at 6am on both Saturday and Sunday

Things I've tried since then:

• I cleared data for the Clock app on my phone
• I booted the phone into Recovery Mode and cleared system cache

I will see if the latest changes help, but still expect to hear an alarm tomorrow morning.

Any suggestions from the Verizon/Samsung hive-mind?

I am loathe to do an FDR.
If I did, wouldn't my online phone settings copy restore what I already have (possibly including this issue)?

I haven't tried clearing cache or storage for the Galaxy Watch5 Manager or Galaxy Wearable apps.
If I did so, what would I lose and/or need to reconfigure?

Phone info:
One UI Version 5.0
Android Version 13

[Haraka · Accepted solution]

UPDATE: No 6am alarm today!

Not sure if it was clearing the  clock app data, or wiping the whole cache partition from the Recovery Mode boot screen.

I'll see if it happens again on a non-alarm day again, before declaring victory.