In my company we solved this problems many years ago before the pandemic. * As the project is quite large, every time a new person appears (no matter if junior

In my company we solved this problems many years ago before the pandemic. * As the project is quite large, every time a new person appears (no matter if junior or senior), for each sprint they get someone to show them around, answer their questions etc. That guardian angel changes each sprint - and it lasts several months. * We have open channels for ad-hoc meetings and the culture encouraging joining them even if the topic discussed is not directly related to your current task. In other words, you can just listen to what other people are trying to solve when doing your task and are free to interrupt them if you feel interested in so on. * Every 3 months we try to get together as much as possible for 2-3 days (it never happened 100% as we live on different continents, the rest joins from their local offices or homes) - and it feels great! * My teammates are really cool and our bosses too, so we have the necessary space to communicate without worrying it will impact our performance. And if someone really wants, they can always come to a local office - but most of the time they are empty as everybody loves WFH and NO WE ARE NEVER COMING BACK.