Friendly reminder that (albeit unethical, by who isn't) cheap Chinese watch strap knockoffs exist for a fraction of the ridiculous Google price. I've purchased several comfortable silicone and woven fabric straps that work perfectly with my Watch 3 that were $4-8 instead of $30-50.
Also some of them are much better quality than the ones Google sells. As someone who has bought many a Google band (Fitbit band) that ended up being high priced garbage. I learned my lesson after 5, but that's still too many.