Do I have to stay at a hot spring hotel to soak in a hot spring in Hakone-CHO?

In fact, there are very few real hot spring hotels. Some hotels say it is a hot spring, but it is actually a bathhouse with a hot pool. Of course, there are many hot spring hotels in Hakone-CHO. Basically, it is mentioned that there are hot springs, which are not commonly found in homestays or hotels. There is also that you don't have to stay in a hotel to soak in hot springs. Some hot springs can be used to soak money, which has nothing to do with staying or not.