Awkward.
The Linux kernel is run out of the US by a Finnish-born, US citizen. So your FOSS is likely to be running at heart on a kernel that the orange goblin has legal oversight and control of.
For core activities, use US tech all you want - Windows 98 and MS Works off a 90s magazine cover disk if you want. But once it is working, never connect it to the internet again. No SaaS, no cloud, no AI. Run it on prem. It cannot be hacked, it never needs to go through a Windows update, and it cannot be turned off by orange goblins. If it works on day 1, it will keep working.
Move as much of your tech as you can offline. As long as you have a viable tech-free Plan B for your online interactions, you can deal with whatever happens.