Financial freedom is not about the currency you use. it's about you sleeping idle doing nothing but still making money. it's called financial freedom. making money and being able to spend it both offline and online.
Really I think you may have a misconceptions about what financial freedom means because saying that you sleeping without doing anything and still have money is what financial freedom means in reality may be wrong.
To me, financial freedom is a state of mind, investment and excess cash flow, where your money will be working for you, this is the best state of financial independence, but this level can't be achieved by a lazy person who is looking for ways to keep himself in bed just being lazy, that is not independent in any form.
Also if you hold a stable coin/currency of any form, it will only become inflatary and deflaterry if the market force are for or against such currency and this is what, results into currency inflation and weakness against each other.