Married filing separately (MFS) tax brackets are just MFS divided by 2, which is worse than Individual tax brackets.
Also various things get cut in half e.g. SALT cap phase-out income limit, mortgage deduction limit that MFS is almost never worth it except in a few niche situations and it acts as a last resort option if you are no longer on speaking terms with your spouse but haven't divorced yet, yet need to file taxes for the year.
Also various things get cut in half e.g. SALT cap phase-out income limit, mortgage deduction limit that MFS is almost never worth it except in a few niche situations and it acts as a last resort option if you are no longer on speaking terms with your spouse but haven't divorced yet, yet need to file taxes for the year.