It's actually a resurgence in popularity as a beach party spot in Europe, at Pampelonne Beach (which requires a bus or taxi to get to, actually near Ramatuelle). It was a hot spot on the summer club circuit, hence the young influencers that head there in July/August.
The town itself is quaint but the main beach is the best part --- long, sandy and not backed by ugly buildings, as well as the big resorts. There are a number of other cute villages besides Ramatuelle, and stretch of road between St. Tropez and Hyeres is scenic.
But in peak season, all bets are off. Traffic can be insufferable heading into the peninsula, and reservations, access and pricing skyrockets. The issue with the ferry is that it leaves you at the village, which is nice but what really is nice imho about the area are the surrounding area -- the famous beach, the wineries, the other villages.