Ubuntu ongoing updates

Hi

While researching the source of a Dell Rescue/Recovery OS

(that may go by the name ...  dell-bto-jammy-jellyfish-quilladin-X74-20230615-19.iso)

that is now on one of my USB sticks, I found this ....

Some OEMs, including Dell, send their equipment to a Canonical team in Taiwan for hardware testing, and for assistance with new hardware Linux compatibility.

(This is also the source of Ubuntu Certified hardware).

That compatibility software works its way upstream into the Linux kernel over a year or two, but while it's doing that Ubuntu users need that OEM repo so their new hardware will work. 

When the generic Linux kernel includes that compatibility, the OEM repo is no longer required.

Two years ago, your hardware needed that OEM repository for your hardware.  But that's no longer the case, the generic Linux kernel should work properly on your hardware, and that particular pocket has been discontinued.

Which I find QI (Quite Interesting) and hopefully helpful to others.