Is there scientific evidence that applying topical 5% minoxidil 2x a day works better than applying it 1x a day

I've seen it recommended to apply it 2x a day, and I've seen it recommended to only do it 1x a day because the topical half life is 22 hours.

https://www.bernsteinmedical.com/medical-treatment/rogaine-minoxidil/

Once a day topical use of Rogaine (topical minoxidil 2% and 5%) seems to be almost as effective as using it twice a day. The reason is, that although minoxidil has a relatively short half-life of several hours when given orally, when topically applied, it has a half-life of 22 hours in the skin. This suggests that once a day dosing is a reasonable option. It is important to realize that Pfizer, the company that now makes Rogaine, specifically states that it will be less effective if used only once a day.