From what I've seen reported and what I've heard from people I've worked with who either have been or still are in that world, including some serious big companies everyone knows, there's a bit of a split. Of course the biggest names give to everyone, but apparently a lot of 'socially peogressive' types are pretty hardcore libertarians who give heavily to Republicans for a lack of oversight, regulation, and of course tax and profit offshoring. Some of those definitely got colder feet about it while the Republicans were pulling tech CEOs into hearings to demand they ban criticism online, Chinese plots etc. But as Trump has indicated he'll be more hands off, the Dems have forced all sorts of faux-moderation these sites don't want to do or open up to, and the more right wing political lobby arm of silicon valley has got its shit together (think Ajit Pai fronting for a bunch of investors trying to force the firesale of TikTok or be banned for example) a lot more of that money is flowing Republican again compared to years past.