Ditto. I've been full-time remote for a decade. This slight continual erosion of trust is something I've often observed - and commented on, including here not too long ago. Online-only interaction might work great for the constrained and voluntary tasks in an MMO, but not so much for the work we do in our careers. Even teams renowned for their prowess at remote collaboration often seem to rely on periodic in-person "summits" to maintain those connections. Even among introverts, true comfort with long-term fully-remote interaction is an outlier.
