What should Prebid do? If I go from https://developer.mozilla.org/en-US/docs/Web/API/Navigator/deprecatedReplaceInURN:

deprecatedReplaceInURN(UrnOrConfig, replacements)

to me means that it needs to be called at the time a paapi ad is rendered. Prebid does not render them (so far), it's either GAM - where I dont' think we can do anything - or the publisher - who is free to call it.

We can take this in consideration for #11379, which adds some rendering logic, but I'm otherwise not sure what the ask is.

So basically prebid can not send any signal to GAM for render params?
So the only real option is to publisher to call the deprecateInUrn function by himself?

P.S. Its not even an "ask" its more discussion of how to do it. I m not really sure how to force GAM to have these params, its not a beacon of sort, so i m curious how to do it

Adding context to @aleskanderl - replacing more render URL macros is required for rendering native ad. If GTM is the top layer seller, there should be a way in component auction that it runs to use the deprecatedReplaceInURN. I think the prebid for fledge support this.

By GTM do you mean gpt.js?

Prebid does not currently have a component seller, but there is one committed in #11094 . Within that feature, decisionlogic.js is configurable, not provided. The decision logic there is purely exemplary, we may build a repo with more consensus logic intended to be useful in the future.

Supporting SSPs attempting to write decision logic for their own company is currently out of scope for this project. You may wish consider asking for assistance at https://github.com/wicG/turtledove/issues/ or refer to this example https://github.com/privacysandbox/privacy-sandbox-demos/blob/49f3903734c7b3a64e98ba74cd79f517dd39ff26/services/ssp-a/src/index.js#L131

@patmmccann yes, I meant gpt.js - thank you for the correction.
Our main challenge is the ability to use the deprecatedReplaceInURN as we need to change the render URL to support native ads rendering.

Taboola will bid on its own IGs - and we will need to change the renderURL macros to change the rendering logic to support the pre-bid requirements (which is different when we run code on the page directly or when done with our RTB partners when we sell the impression)

Can you please direct me? Your guidance is crucial in determining if this is achievable.