I’ve simply stopped generating content for them. Some of the third party apps still work without a subscription (probably rate-limited), so while I mostly browse Lemmy, I switch to Reddit when Lemmy’s feed runs out and just don’t add any comments or posts and don’t vote on anything. That way, because they get no ad revenue from me, I’m not benefitting the company in any way. I see no reason to avoid consuming content created by other people and posted online, regardless of what platform they use.