Is it mandatory to adopt expansion joints?

Had an appointment today with a flooring installer for the installation of adhesive vinyl. The topic of expansion joints also came up.

The flooring installer said he could either take over the expansion joints from the screed installer.

Then put an expansion joint profile there, lay/glue the vinyl on both sides, and then seal the joint with silicone?

Or cut open the expansion joint from the screed installer with a grinder, clamp it, bond it with epoxy resin, and then glue the vinyl on top?

We don’t like the first option visually at all. For the latter, I’m not sure if that is the current state of the art and installation guidelines?

Or are there other options or tips to avoid this silicone joint?

Please take them over. The screed layer does not do them for fun.

Yep, I have meanwhile also found network that one probably can't avoid. Ergo, we will probably have to live with it...

It is also possible to work with fabric to bridge expansion joints

You can also work with fabric to bridge expansion joints

Do you have a link or more detailed information?

Do you have a link or more detailed information?

Not really. The floor installer offered this. He glued the joints with trade paper and then laid the parquet over it.