I knew someone was going to bring this up. So read this:

https://medium.com/@ovenplayer/does-proton-really-support-trump-a-deeper-analysis-and-surprising-findings-aed4fee4305e

Small piece from the article:

Under Yen’s leadership, Proton donates a sizeable amount of cash, and the benefactors are easy to find since non-profits must disclose donations. In total, I’ve identified over 30 organizations that received grants from Proton, and you can find a partial list here. Interestingly, they also made a few donations not publicized on that page (one was to a Hong Kong democracy org, which might explain why it was hidden).

Findings:

Not a single organization has ties to Republicans or conservatives.
Many of them are known to be liberal, for example, Access Now and Fight for the Future in the US.
There were at least 10 that also received funding from Soros’ Open Society Foundations.

In my research, I discovered that under Andy’s leadership, Proton has a giving pattern similar to George Soros, one of the Democratic Party’s mega-donors.

Also, look who's getting the next round of financing from Proton: https://proton.me/blog/2025-lifetime-account-charity-fundraiser

He's not a tankie. He's very liberal. There's no evidence he ever supported Republicans, let alone Trump.