> Google is convinced I'm trying to break into my own accounts
Yep, the more you attempt the harder it will get, please wait for the 72 hour account hold and if that fails it's best to wait a full week without any sign in attempt or recovery attempts.
Per [1] As of 18th December, a majority of cases testing with the SGTF (indicator for Omicron) reached over 50% on the 14th December. It's clearer to see in Figure 2.
Some of the agencies here don't fit the problem of 'M' meaning 'Metro', for example the last logo (Row 7) is described as Liverpool's metro system. It is not a metro system but a full train operating company and the 'M' is for Merseyrail