

Supply chains are globalized. It just needs one step to be performed in the US (e.g to protect critical IP) for the tarrifs to be applied. Your comment prompted me to do a bit of research on Nvidia’s supply chain, and here is what little I could find, a non-exhaustive list of suppliers.
You’re right, it doesn’t seem like they have parts done in US (mostly Taiwan, China, and Thailand), which should mean they are somewhat safe drom this. But depending on the reseller you buy from, if their distribution network goes through the US, you might still get those tarrifs applied back to you (even if you don’t live there).
Last I heard about this, they did not fully commit on a singular technical solution yet. The closest I know being NGI Taler (FLOSS, created by a Swiss company, and plans a lauch in Euro this year), but it doesn’t support offline payments yet, unlike what the digital euro’s brochures say.
Hopefully this will be resolved, but I hear this is a very polarized subject since it would remove a lot of powers from the banks (by concentrating it around the ECB), and they are lobying heavily against it, and the right wing is listening.