I have only ever read about 20 subs on Reddit and I've never had an account there. I use Teddit to read them for stuff that hasn't made it to Lemmy yet.
just so we're all clear on one thing, generally frontends still contribute to traffic of the main platform. it's most likely that using these frontends is still contributing to reddit's traffic, even if you're not giving them any semblance of ad revenue.
if you're doing this because you don't want to contribute to the data-mine and don't want to give them ad money, this is a good tool. if you're doing this because you don't want to support reddit, there's a good chance you've been misguided there-- you'll still contribute to the numbers they show investors at the end of the year.
Can you get on with using teddit.net which is a privacy-focused front end for Reddit? It doesn't change much but they'll get less useful data from you.
Either way, if you use Lemmy more and Reddit less than you used to, they've still lost something.
I don't feel too bad when I'm forced to use Reddit as a resource, because I have a pihole as well as a ton of adblockers, and I don't have a Reddit account anymore. I miss the niche communities, but I find that my life is better without that continual time sink with its constant silent downvoters, so I don't visit just to browse nor do I interact with the site beyond a page view. No upvoting, no downvoting (of course it's already impossible because I'm not logged in).