This is it. For years, I had a stable IPSec connection from Germany to the US, where packets would be routed selectively for the convenience of web browsing without geo-blocks. It was a bit excessive for what it did, but the technical challenge of trying it was worth it. [1]

[1]: https://du.nkel.dev/blog/2021-11-19_pfsense_opnsense_ipsec_c...