Not sure if it is like that because I'm in Korea, but on my Samsung S9 Samsung is injecting ads for their new S24 in my notifications. I've had the phone for 5 years and this is the first time I see ads in my phone notifications, unbelievable.
And that's why you only buy phones where you can install a custom ROM, and then kick any poisonous bloatware and google shit off before starting to use it.
Yeah unfortunately that Custom ROM scene is dying out, I see that plenty of older phones are still supported (e.g. Galaxy Note 3, Samsung S5, kind of all Xiaomis) but newer phones are just a handful of models which its bootloader can be unlocked, and then some of these have support for Magisk and TWRP but sadly no custom ROMs.
Edit: still the ability to root these and unbloat them is better than nothing.
Yeah unfortunately that Custom ROM scene is dying out
I feel like recent Android has gotten good enough for me that I don't really need custom ROMs anymore. As long as I can still root the stock ROM and install AdAway, I'm fine.