Foundations architects are judged on
Failure domains and identity - the two things reviewers always test.
Mai Studies Original · Cloud Computing
A practitioner programme in cloud architecture written from the decisions architects are actually judged on: failure domains, identity, choosing compute and storage, observability, and cost. Vendor-neutral in principle, with the naming differences between the major providers explained as you go.
This programme carries its own fee in addition to membership, and gives you twelve months to complete it. Your certificate is issued once the fee is paid.

Original Mai Studies learning material. This is a professional completion programme, not a regulated qualification or university accreditation.
Programme syllabus
Failure domains and identity - the two things reviewers always test.
Compute and data choices, made for the access pattern rather than the trend.
Observability, incidents and the cost architecture nobody designs until it hurts.