For example this mod only had one version ever, however, the 'Total Downloads' above read 97 + 113 subscriptions but the 'Downloads' number below is just 10. Which one is correct?

That photo represents two downloads, the first one on top being the newest and latest one and version 1.0 being the oldest version. The mod is probably now Version 1.5 or 2.0 depending on the author

Nope, first release date is the same as last update so most likely it's the only version, also it's an Automation mod and they don't get updated much

Yeah, it's my mod, so I know it's not been updated for sure. I also went to another mod I wanted to have, checked the number of subs and downloads and then proceeded to click on Subscribe. Waited for Beam to be done with downloading the mod and then refreshed the mod page again to check the numbers...They were all the same.