That isn't the only challenge, of course -- there are time zone differences and language barriers to overcome, but those also seem to be diminished vs. 10+ years ago. We're getting more used to being flexible with our time, and people are adjusting to working with people around the world, accepting both language and cultural differences.
I've had team members across the globe since 2018 and while it isn't always easy, it works just fine if people are willing to respect each other and respect everyone's needs.
Now imagine all the work at home jobs that people are fighting to keep. It will take close to 0 effort to ship them to any english speaking locality. I bet that as I write this there are companies springing up in India, China and many other places ready to offer the same service at much lower cost. 10+ years from now most if not all the work from home will be outsourced. Anyway you look at it whether it's no longer sanctioned by the employer or it's out sourced. Working from home 100% of the time is coming to an end.
BTW, some of the biggest companies in India are companies that specialize in outsourcing jobs into India.