Very similar experience coming from a Pixel in September. Some spam texts were starting to get through googles filters earlier this year (all male enhancement spam texts). But before that it was perfect.

I've been using the report junk feature on iOS and have had a pretty similar experience, it has slowly cut down on the amount of spam texts. Definitely a lot better than when I got the phone. For spam calls, T-mobile offers an app called Scam Shield that will block known spammers and send other annoying calls to voice mail automatically. I think other carriers offer similar apps if your not on T-mobile, highly recommend looking into them.