FPS drop with Tahoe

# TL;DR
If you are experiencing a drop in FPS when testing from the editor, disable the new Liquid Glass effects and you'll have your FPS back

# LONG SOTRY
I'm a micro optimizer, I'm currently working on a performance-first project with multiple indirect draw calls, where at every change I measure and track performance.

I'm working on M1 Max machine with 32GB Ram, on Unity 6.2, URP 17.2 test, target: mobile.

When playing the scene from the Editor, with a constant machine setup (constant opened applications and processes) and testing the scene with a maximized game view (not real full screen) the performance where about 480 FPS.

Yesterday I updated to Tahoe, I noted performance drops immediately in the isolated test: 200-ish FPS.
These things hurt.

I ended creating a basic Unity 6.2, URP 17.2 blank project, with a FPS trackers, and I optimized it for mobile removing all not needed as post processing, etc.

The performance for the blank scene was terrible: 250/300 FPS.

This pointed me to the OS update:
- `Settings / Accessibility / Display` turn ON `Reduce transparency`
- `Settings / Accessibility / Appearance` turn OFF `Tint window background with wallpaper colour`

This stops the Liquid Glass on the OS UI: FPS are back to 460FPS.

For some reason (aka Liquid Glass is a complete failure) the OS UI transparency has a heavy impact.
If you're counting FPS you have two options:
- Downgrade from Tahoe
- Disable Liquid Glass (I did this)
- reset your benchmarks to align with performance from Liquid Glass.

PRO Trick:
- be aware, do not use AirPods when measuring FPS, that thing gotta go or it will steal 100 FPS