I can literally write a book about this!
Now no one digital communication tool is perfect, so don’t look for that, rather settle on something that ticks most boxes.
If you don’t insist on a single source of communication truth then you will experience miscommunication, misunderstandings and frustration.
I know many teams have settled on using MS Teams during this time. Not perfect by any means, but you most definitely can use it to funnel all team communication into this environment so you can ensure you don’t have siloed communication happening elsewhere.
Use everything that is available in teams:
Chat (no need for WhatsApp)
Video Calling (no need for Zoom)
Threaded conversations (no need for email)
Word Docs (no need for Google docs)
Reduce the number of communication venues as much as possible!
The point is, although being far from perfect, in this example, Teams can become your central communication hub preventing information and conversations being fragmented across the organization across multiple communication tools.