Online collaboration can work, and work well, but it needs some planning and preparation. Otherwise, productivity and efficiency take a big drop -- as does morale (don't underestimate that).
With a big upturn in working from home and remote working, it's fortunate that we no longer have to try to make do with ad-hoc systems of cobbled together services, with email in one app, video conferencing in another, file sharing in another, and projects and to-do lists somewhere else completely. Integration is key to not only efficiency and productivity, but also when it comes to providing support for remote workers.
Giving remote workers the tools they need to collaborate in real-time, and to do so using a platform that makes that as simple as possible allows team members to get on with their projects, rather than be fighting with the tools to get the job done.