What are the right settings to use S3 bucket (with non-Amazon URL)?

:rotating_light: STOP NOW :rotating_light:

Create a new bucket that does not have a dot in its name. You will encounter endless suffering if you continue, due to how SSL wildcard certificates work.

Ref: Discourse does not allow dot «.» symbol in bucket name while Amazon S3 allows it
Ref: https://stackoverflow.com/questions/62568657/ssl-certificate-issue-with-bucket-name-containing-dots-while-trying-to-use