Every EU company I ever worked for, from big multinationals to start-ups, mostly used US software and/or US/Chinese products anyway, even though engineers already knew there are FOSS/European alternatives. It all feels futile, kind of like pissing in the ocean.
Because the end goal of any business is to produce and sell as many products as possible, as quickly to market as possible, for as high margins as possible, not focusing if the tools they use to accomplish that goal are European, American, Indian, etc. Usually the more resources you focus on straying from the beaten path to niche solutions or rolling out your own solution, the more resources you waste from the goal of shipping the end product.
Therefore the SW devs and bean counters are still gonna go for Office 365, Azure, Google Workspaces, etc, instead of some no-name European alternative.
When you buy a house do you care if it was built using Bosch, Makita or Milwaukee power tools? Likewise, your customers don't care what SW tools you used either, they care about price, performance, speed and value.
If your competitors can beat you to market by using US/Chinese tools while you focus on using exclusively EU tools, you'll be selected out by the free market, unless some laws and tariffs are enacted against non-EU SW which I don't see happening in Europe.