I only know that this started to appear every day since that time, and as already stated in that thread group chat isn’t moving to AWS, so I’m quite perplexed how the migration somehow affected group chat and whispers in an unexpected way. This is why I posted my findings on group chat lag and how it’s likely not going to be fixed.
And after my initial post, I’ve heard of reports that some whispers sometimes got eaten up, so apparently this situation has started to escalate even further.