How do you manage your remote team, and what challenges do you face

Let's face it, COVID changed the landscape of how we work together. Most companies have adopted or are in the process of adopting a teleworking culture. Surely this transition comes with challenges, I am interested in understanding a few things: 1. Which processes and tools do you use to ensure 1.1. productivity of each team member 1.2. efficient collaboration 2. What are the key challenges do you experience while working remotely Thank you.