I used to use TurboTax Free Edition, constantly frustrated with all the dark patterns used to try to trick you into switching to non-free. Eventually I started making too much to use Free Edition, which is right around the time Credit Karma started offering free tax filing, but I hated CK's UI/UX. It made it easy to miss a deduction, and it did once. I used TT to basically "prepare" my taxes, but not actually file so I don't get charged, then prepared with CK and found a discrepancy. I was able to find and fix it and get my full refund.

But then some years ago, someone recommended FreeTaxUSA, and it's great. UI/UX is fine, federal filing is free, and state filing is only $15.

I've been using FreeTaxUSA for a few years now. 10/10 would recommend.