Logitech unveils the MX Ink, a stylus for Meta Quest 2 and Quest 3, plus "future headsets", the Quest's first third-party input device, shipping in September (Scott Hayden/Road to VR)

https://www.roadtovr.com/quest-first-third-party-input-logitech-stylus/
http://www.techmeme.com/240617/p7#a240617p7