Personally, I wouldn't Roth convert in this situation.
1) I plan to spend at least some of retirement abroad, so I won't have to worry about ACA subsidies. If you'll need to get ACA insurance in retirement you might consider:
https://seattlecyclone.com/marginal-tax-rates-under-the-aca/ which could push you to Roth convert despite high marginal rates currently.
2) I plan to establish residency in a no tax state for at least some of my retirement, so my state tax bracket will go down. If your state tax bracket will stay the same or go up in retirement this may favor converting.
3) While tax rates are scheduled to go back up in 2026, you'll still be able to have something like $100k of income while staying in a lower bracket than you are now (15%). I don't think this will change drastically at these "lower" income levels. If you're expecting to spend more than that it retirement (probably the wrong forum for you) or you disagree and think brackets for "low" income people will go above 22% then that might favor converting.
Whatever you do, make sure you have at least something in traditional when you retire. You at least want to be able to fill whatever standard deduction and personal exemptions there are at that time.