Reconnaissance satellite technology isn't US-exclusive (https://www.dw.com/en/modern-spy-satellites-in-an-age-of-spa..., Ctrl+F "Spy satellites in numbers") and those who have a meaningful need to track B-2 movements most likely have their own tools that are up to date, more accurate, and not bound by laws or regulations a US domiciled company is subjected to. What we see on Google Maps is almost guaranted to be 100% "trash" from a military intelligence perspective because actual valuable information has always been obtainable without Google Maps for entities who are capable and in need.
Whatever country you are in would do the same if it could.
In other words; this google maps link has been circulating around the net for the past week and a half at least -- seemingly originating from either a Discord or the chans; if I were some foreign intelligence analyst I'd definitely be considering the premise that these photos have been so widespread and uncensored simply as an online show-of-force.
( personal anecdote : as an amateur aviation enthusiast/plane-watcher, the B2, as majestic as she is, isn't particularly rare to catch in the skies -- and nowhere near 'secret' )
Let's assume that some adversary is out there keeping track of these planes, and knows that they can scan Google maps for the RGB artifact by the engines to locate them reliably and programmatically.
Now Google maps becomes a repository for information that adversary may use to validate other information. Maybe this confirms the schedule for some training excersise. Maybe this particular B2 being in this location validates or invalidates other information about US troop strength abroad.
I was taught to always "assume your adversary is capable of going through your trash" and try to prepare my "trash" accordingly.