In general, in Europe there is research infrastructure that I think could be used at a medium scale for important applications (but I am not a professional).

There is the NanoIC research line at imec (2nm), CEA-Leti incomming 7nm FD-SOI pilot lines, and in terms of full production lines, Global Foundries Dresden (12 nm), ESMC (12 nm, in construction), and the various FeRAM/FMC projects I can't keep track of (Neumonda for example).

I would be more worried about designs, because outside of ARM (and Imagination Tech, both in the UK), I don't know any competitive European designs. (about routers NXP already makes router chips with accelerators on top of ARM cores, used for example in the Mono Gateway, but they are fabbed on old TSMC nodes)