My company had some lateral movement which, somewhat surprisingly, resulted in me being promoted to "Lead Architect". It's just a fancy title because we don't have any other designated software architects. There was, in any case, technical responsibility that needed to be redistributed, so that's what happened, and titles shifted accordingly.
In the past, I had used my training budget for software architecture certifications, which was met positively by my team lead and management.
While I _wanted_ to take on that role _eventually_, I was surprised to have it happen so early. What are the things I need to learn ASAP? What things do I need to do? What should I study/read?
When I was the (de-facto and later de-jure) architect, I was too reliant on in-person synchronous discussions. I neglected my e-mail and design-document skills.
The result: everything had to be synchronous. Chat was a wasteland. Decisions where one just had to Sit Down and Think wasted multiple people's time. I realized I was subconsciously avoiding writing long documents.
Part of the problem was - no kidding - I needed a new glasses prescription. But mostly I just needed to get used to the act of sitting down, drafting, and writing a design document. I also needed to encourage the team to have a bit of discipline and design before coding.
Later, as I transitioned out of a "move-fast-and-break-things" place to a large open-source project, my learned avoidance of writing definitely hurt me. I was not practiced at asynchronous design and development.