"Shielded" transactions on networks such as Zerocash are private. There's an increasing trend in this direction as "zero knowledge" layer 2 networks come online

"Shielded" transactions on networks such as Zerocash are private. There's an increasing trend in this direction as "zero knowledge" layer 2 networks come online, since they have the same underlying mechanisms which makes private transfers easy to implement (or to even have as the default).