Thank you, that is the explanation for the issue.
For the two date ranges, they appear to be identical; yes, those two date ranges are three months before the landing page redesign and three months after. I wanted to try to understand the changes after the landing page changes, but it seems that I cannot get any difference using Analytics. To improve the landing page that was redesigned by a non-professional, I need to dig into Hotjar heatmaps, user recordings, and surveys, as well as the live chat that I implemented over the past few months, to see what can be improved in terms of the website copy, the information hierarchy, etc.
Even if the data is not qualified to be accurate, I think I need to try to squeeze all the information to get some useful insights, and this is the other issue that I’m facing with this low-traffic website.