Not quite. Jellyfin does take in donations, but they intentionally hide this feature on their website – first you need to go to their Contribute page, then you need to read “Find a way to contribute” blurb and notice and click Other, then you need to click Help Pay for Expenses, then they give you a speech practically asking you to reconsider:

As a project, we generally do not like asking for donations - we are entirely volunteer-run and intend to keep Jellyfin free as in beer, as well as free as in speech, forever. We do not wish, support, nor intend donations to privilege any user’s voice or priorities. That said, if you do want to help us cover some operating expenses like our VPS hosting, domains, developer licenses, metadata API keys, and other incidental expenses, check out our OpenCollective page to donate. Our entire budget as well as all expenses are publicly visible there.

And then you have to click that link and intentionally donate money – any amount you want either one time or monthly. The level of integrity compared to Plex – who take in VC money hand over fist and are descending into nickel-and-diming their customers – isn’t night-and-day: it’s the surface of a star and the center of the Boötes Void.