Soft Proofing

There’s no contradiction between my post and of @Lucabeer .
I just wonder that if soft-proofing means to see how an image looks at another device, how that interacts with an own rendering intent. If everybody uses it’s own rendering intent where is then that uniformity that color management tries to gain.
If I download a printer profile from my printservice for soft proofing then I expect that pl is using that one as it is and not changing it.
On export that isn’t important, the image is the end product. But here we’re talking about soft proofing.

George