I don't see the dependency on these productivity and communication tools as that difficult of a problem to solve.
They are going to have a much harder time weaning off American cloud infrastructure and on to something purely domestic.
Jitsi meet exists for long time and it works. What is needed is eu sovereign clouds
They need to do both the hard things and the easy things, and do them in parallel.
Which they are.
Depends how hooked into the "cloud infrastructure" ecosystem they are. If it's a provider of vms which are easy to move from one provider to another that's one thing, if it's reliant on the latest cool aws thing that's another.
Hardware is the biggest problem: PCs (CPUs, RAMs, GPUs), Cellphones, routers, etc.
Globalization appears to be self imploding by virtue of the current american president.
Now everybody realises you can trust no one.