Adding another vote for JPEG XL open/export support in Photoshop, and improved open/export in Bridge and Camera RAW.
It's frustrating that it's been supported on Apple platforms for over a year (introduced in Safari 17 last year for iOS and macOS) and the native support improved even further this year across iOS/macOS (e.g. you can now just open a .jxl file in Preview and Finder like any other image), but there's still no way to directly open or export a .jxl from Photoshop. For a current web project we're working on, we have to output images from Photoshop as PNG and then have scripting to run them through a JPEG XL encoder.
Given its significant size and performance advantages over JPEG and the continued expansion of support by CDNs, online stores and other tools, having the ability to export a .jxl from Photoshop is a must. It should work like the current JPEG export, allowing quality to be configured for lossy or lossless.
Bridge and Camera RAW's implementations are also incomplete and don't correctly decode/render some .jxl files (wrong tone mapping, etc).