Please read what I wrote.
I wrote about ad-networks that the other ad-mediation services support. I didn't write that Admob should add other mediations. Those are examples of lists of ad-networks to consider adding.
For example, if you check the list of Applovin vs what Admob supports, you will see that Admob doesn't support these of Applovin:
"Amazon Ad Marketplace", "BidMachine", "BIGO Ads Bidding", "HyprMX", "MobileFuse", "Moloco", "Ogury", "VK Ad Network", "Yandex", "YSO Network".
If not here, where do you want me to write about requests to add more ad-networks for mediation to be supported?
As for which ad-networks don't work, I already explained you in other posts. I will write again but please check it out yourself before stating otherwise:
1. TripleLift - doesn't exist anywhere
2. Sonobi - when choosing on Admob's console to fill the form, it reaches a page of "Invalid Parent Origin"
3. Nexxen - had issues filling the form initially, and now when I try to reach it, the webpage auto-closes by itself.
4. myTarget - can't sign-up and login on website. No place to communicate about it either.
5. LINE Ads Network - no explanation of how to sign up. Not on Admob's website and not there either.
Even for ad-networks that Admob supports and seem to work, there are missing points in the docs that are very important:
1. How to process and pass the GDPR&CCPA data when using UMP SDK by Google, and if it's even needed (some handle it automatically).
2. How to handle the App-ads.txt file. This isn't mentioned for any ad-network. Some offer it in a website. Some have a tool to verify it's fine. Some send via email.
3. Handling payments. Some need to be set up (and some in some conditions), while for others it's Admob that handles the payments.
4. Mention about supported ad-sizes of banners. I've discovered for example that Applovin supports 2 banner ad-sizes (no MREC size, only small height banners), and it's not mentioned on Admob's docs. Instead it has a weird unclear text there.
Because of this, Admob's SDK actually got me (and that's a bug too) Applovin small banner size when I requested a large one, and it even claimed it's a large one (which is also a bug). Those are 3 issues in one... Could have been avoided either in docs or in SDK. This makes Inline adaptive banner completely unusable, so I need to check on sizes myself and use fixed sizes, only, while also having multiple ad-units to match what ad-networks support.
Today I've found that Pangle also supports just 2 banner ad-sizes: 320*50dp , 300*250dp , and again it's not mentioned on the docs by Admob. At least it's shown on the console of Pangle. Sadly only one can be chosen, which makes it very annoying for mediation. I wrote about this here:
https://groups.google.com/g/google-admob-ads-sdk/c/Ws70QyIB7nE