The advantage B2 offers is lower pricing

The advantage S3 offers is seamless integration with other AWS services

IMHO, the ease of integration has significant value, it would take a very sizable S3 bill for me to consider not using S3

I agree.

The reason I was asking is because the OP did not appear to be using any other AWS resources.

No real reason other than the fact that I already had an AWS account and I was saving quite a bit of money already.

I may look into B2 later. But again, I’m well below my original costs so I may not look for a while.

or over Cloudflare's R2