Attach skirting boards later due to screed and joint formation?

Hello, we were advised to install the baseboards for our cork floor only a few years later, as the screed can still settle and a gap may form. Furthermore, due to residual moisture and the risk of mold. What is the opinion in the forum here?

Yes, you can do that.

I would wait a year. Of course, doing it immediately is also possible, but then there is indeed the risk that a gap will form. Mold risk due to residual moisture is nonsense.

You can try a wall "Testleisten" and see if you can manage it today without any gaps at all. It's definitely not only in old buildings that the floor and/or plaster are uneven or bumpy. If you already have gaps now, you can just attach all the strips and then wait 1 year to do the sealing with acrylic / silicone...

We were advised to install the baseboards for our cork floor only a few years later, as the screed can still settle and a gap may form. Also due to residual moisture and the risk of mold. What is the opinion in the forum?

Hello "Hausbaer".
If the subfloor, here the screed, still had (as you fear) too much residual moisture, then the screed would not yet be ready for installation. In that case, installation should not take place either!
However, if the suitable dryness of the subfloor has been confirmed by measurements, your concern is completely unfounded.
Every mineral (wet) screed tends to cup at the edges due to drying. In cement screeds, this process is in fact material-related and typical, and therefore not always avoidable; in calcium sulfate screeds, cupping at the edges is generally very slight and negligible.
For tile baseboards, I would agree with your opinion to wait for a while before installation. But not for cork flooring and usual baseboards.
A re-cupping of the screed edges is visible later as a gap when it warps more strongly, but it cannot be avoided.
But to forgo timely installation of the baseboards for that reason is, from my point of view, completely exaggerated.
Because you do not know the extent of edge cupping (and thus also of re-cupping, which would later lead to gap formation beneath the baseboards) and currently, to put it as a metaphor, you are already bringing the cannons into action even though the sparrows have not yet settled on the roof.
To summarize: With a sufficiently dry subfloor, install the cork flooring and have the baseboards installed!
Regards:
KlaRa

Because you simply do not know the extent of the edge cupping (and thus also the reverse cupping, which would later lead to joint formation beneath the baseboards) and currently, to put it as a metaphor, you are already bringing the cannons to bear even though the sparrows have not even settled on the roof yet. To summarize: Lay the cork floor on a sufficiently dry substrate and have the baseboards installed!
Regards:
KlaRa

Can I conclude from this that it will not necessarily lead to joints, and that I can therefore take the risk of installing the baseboards? The edge cupping is probably different everywhere anyway, so it could happen, for example, that only one joint becomes visible in one place?