Starting new chapter as DevOps manager

Hear me out. After 20+ years of working as senior individual contributor and technical lead, I am moving into DevOps management. I am joining new organisation, so I am at a disadvantage of not knowing absolutely anyone. It’s in banking. Team of ~10. I am both most senior DevOps manager and engineer, so I hold authority in both, at least as far as Platform Engineering goes. What would your advice be in how to handle 1st day, 1st week, 1st month?