There are many cases where whatsapp adds new features for users and introduces them first in beta, only for some members of the community. If the pages of WABetaInfothis is the case with a new feature to improve the file submission experience.
Both on Android, on the web and on iOS actuallythe messaging app quickly estimates how long it will take for the files to reach them, and knows roughly when everything can be accessed.
Of course, this is not a revolutionary novelty, but it happens several times that files are sent with dimensions that are not exactly recorded and do not know when they can reach the sender. Therefore, it is certainly an excellent possibility for users to be able to count on this counter that estimates the transmission time.
At the moment everything is available as stated only in beta for testingand all users can get their hands on everything only if the company has sufficiently tested the novelty and decides to implement it in stable versions of WhatsApp.
Source: Lega Nerd
