The trick to get around this is to move smoothly up and down the gradient of social interaction intensity, never dropping below a basic floor of presence: the sense that there are other people in the same place as you.
Instead of having two modes, “in a call” and “on my own,” we need to think about multiple ways of being together which, minimally, could be:
In a video call
In an anteroom to a video call, hearing the sound of others
In a doc together
On my desktop but with the sense that colleagues are around
And the job of the designer is to ensure that their software ensures the existence of these different contexts, instead of having the binary on-a-call/not-on-a-call, and to design the transitions between them.
It has long been understood that striving for originality as an end in itself is the mark of an inferior artist. The personal style of a good artist is never something that has been deliberately cultivated and forced but something that has appeared unsought as inevitably as the personal style of a man's handwriting.
But since artists of note are seen to have a distinct personal style, no artist can hope to make a reputation in a competitive society unless he too can show a distinctive style which easily differentiates his work from that of other artists and draws attention to it. Therefore artists of little capability or uncertain vocation will take great care to make their work look 'different', whereas those with any certainty in them will know that their work cannot help but look different from that of other people any more than signatures can.
It is worth reflecting that the fact of the unmistakable individuality of each man's signature is one foundation of modern commerce everywhere. To establish the individuality of it one need not write it vertically up the page in letters two inches high. And yet there are only twenty six letters, and everyone else uses them too.