The phrase "was ist only friends" in German translates to "what is only friends" in English. "Only Friends" appears to be a name used by specific platforms or communities, distinct from "OnlyFans," which is a well-known content-sharing social network where creators share photos, videos, and other content, often behind paid subscriptions. OnlyFans is popular primarily for adult content but also includes other types of creators like musicians and fitness experts.

There is also a mention of "Only Friends," which seems to be a community or network organizing events and local meetups for its members to socialize, join clubs, and attend activities like concerts and hikes, without the explicit content focus of OnlyFans.

If you meant "OnlyFans," it is a platform where users pay to access exclusive content from creators; if you meant "Only Friends," it is a social group/network primarily for friendly interactions and events. Please clarify if you want information specifically on either platform or concept.