It's not as pronounced here in WA as it is in say Nevada. But, things that I see in WA, off the top of my head (not all government policy):
1 - anti-housing like you say. You see lots of signs in my neighborhood wishing against more-dense housing, despite (relatively) astronomical pricing. At least in Seattle, we do have an issue where we're constrained by water so there isn't a lot of places to build that aren't very far out. So density really is the only solution if you're going to keep computes reasonable. The only people who can afford to buy the existing not-dense housing have a ton of money or income (or both). A >$1m SFH is just not affordable in a city where median household income is $100k.
2 - push against increasing property tax. Sort of a corollary to the housing bit. Which gets doubly odd because we have no income tax in WA. Weirdly regressive.
3 - the strange and ineffectual CA-style push against "assault rifles" as the main item of gun control, despite the fact that all rifles nation-wide kill ~300/yr while pistols kill 30,000/yr, 10k of which are homicide. I say ineffectual because Amdahl's law is a thing, so even if you did magically disappear all riles in the country, it would have a ~1% impact on gun violence.
4 - restaurants heating the out of doors. This spiked a lot with coronavirus so it's hard to talk about now. (This might also be me projecting because I myself am an implant from the Midwest (yes I am a hypocrite), and heating the out of doors is just complete insanity to me)
5 - Many more good restaurants in general though. Sadly, still not a lot of good mexican restaurants.
6 - a change in coffee styles. Take from that what you will, people are kinda religious about it here.
It's really hard to pick out what's actually influenced by CA implants, vs what is just homegrown.