is there a sensible way to reduce bounce rate?

First check which bounce rate you're looking at. In GA4 it's just the flip side of engagement rate - a session counts as engaged if it lasts 10 seconds or more, hits a key event, or views two pages. So a blog post that answers the question in one screen can have a high bounce rate and still be doing its job. Where it's a real problem it's usually a mismatch: the page doesn't deliver what the search or the ad promised, or it's slow on mobile and people leave before it loads. Look at bounce by landing page and by source, not the sitewide number, and fix the worst landing pages first.