The story of McDonalds in Denmark is a fun example of this if anyone wants to read. [1]

McDonalds decided not to follow the union agreement and thus set up its own pay levels and work rules instead. This was a departure, not just from what Danish companies did, but even from what other similar foreign companies did. For example, Burger King, which is identical to McDonalds in all relevant respects, decided to follow the union agreement when it came to Denmark a few years earlier.

In late 1988 and early 1989, the unions decided enough was enough and called sympathy strikes in adjacent industries in order to cripple McDonalds operations. Sixteen different sector unions participated in the sympathy strikes.

Dockworkers refused to unload containers that had McDonalds equipment in them. Printers refused to supply printed materials to the stores, such as menus and cups. Construction workers refused to build McDonalds stores and even stopped construction on a store that was already in progress but not yet complete. The typographers union refused to place McDonalds advertisements in publications, which eliminated the company’s print advertisement presence. Truckers refused to deliver food and beer to McDonalds. Food and beverage workers that worked at facilities that prepared food for the stores refused to work on McDonalds products.

Once the sympathy strikes got going, McDonalds folded pretty quickly and decided to start following the hotel and restaurant agreement in 1989.

This is why McDonalds workers in Denmark are paid $22 per hour.

[1] https://mattbruenig.com/2021/09/20/when-mcdonalds-came-to-denmark/