gnirehtet VS Tweaker

I don't understand how is your data related to a software update, nor how is a screen replacement related to wifi and mobile data... Moving on, if you want to transfer your files with smart switch, you would need a USB-C to USB-C cable and connect the 2 phones together, then on the new one open smart switch and select to receive data and then follow the instructions. If you want to update your phone from your laptop, also use smart switch on your computer and follow the instructions from there, it will ask you the phone model and some other stuff. If you want to give internet from the laptop to the phone using a cable follow this guide https://github.com/Genymobile/gnirehtet

You can also try reverse tethering over a USB cable: https://github.com/Genymobile/gnirehtet

Yes, but in Virtual Desktop it requires some hackery (side-loading a Settings.apk onto your Pico to enable USB tethering), and it can often result in BSOD's on your PC. If not mid-gameplay, then often when disconnecting. My PC crashes every time I quit out of Virtual Desktop with this method, even though while gaming it's fine. There are some driver tricks to reduce the problem but nothing really 100% fixes it. There is also reverse tethering with more hackery, but I can't speak to how well this works. These are all the reasons you see people using ethernet tethering instead of just USB.

I am using https://github.com/Genymobile/gnirehtet (Java version, cause rust implementation causes random disconnects every 15 seconds). And the process is much simpler, than using default tethering.

Reading from the link that I sent, it seems Virtual Desktop works with USB on Quest as well but it's a bit more complex than with Pico since it requires the installation of can app called gnirehtet. It would be pretty nice to have this feature on Virtual Desktop itself without needing all those extra steps though.

It would be cool if something like this is possible, but I'm not too optimistic. An alternative might perhaps be reverse tethering like Gnirehtet (assuming it works on newer Android versions), if you don't mind using a computer as a middleman.

Download gnirehtet (gnirehtet-rust-win64-v2.5.zip).

2) Install SystemUI Tuner (open source app to tweak system functionality using Shizuku): https://github.com/zacharee/Tweaker

SystemUI Tuner (version 350): view and modify hidden settings on Android devices

As has been said it's a notification overflow indicator. You can use apps like Notification Log, which logs app notifications, and Super Status Bar/SystemUI Tuner (see documentation), which allow toggling system notifications, to help determine what notifications are causing it. App notifications usually appear on the left side of the statusbar whereas system notifications usually appear on the right. The overflow indicator may pop up both places.

The app's documentation lists some things to look out for, and the in-app UI also warns you of potentially dangerous settings. As long as you stay clear of these you should be safe. I'm using this app myself on a Motorola device and have no problems with it.

If anything I can recommend the SystemUI Tuner app. On my device it allows me to set the percentage at which power saving kicks in to 100% (default is 75%), meaning the device is always in power-saving mode unless charging. Please see SystemUI Tuner's documentation before installing.