Since all income will be converted to US dollars from March 3rd, 2023, you can still decide to leave the income in euros until February 28th, 2023. Where can this be set in the provider account? I want my earnings to continue to be paid out in euros.
That won't be possible, and you will need to ask for a payout before March 3rd, if you want to get a last EUR payment. Thereafter, your EUR account holdings will be converted to USD at an exchange rate of 1:1. All future earnings will be booked in USD and payout will be in USD and converting charges will be on your side.
To all others reading this: this concerns only contributors that up to now still were able to get their payout in their local currency instead of USD. From March 3rd, Adobe converts all accounts to USD accounts. If your account is of newer date or was always in USD, it will stay as such, untouched.
Just to round out my answer: There is no option beyond March 3 to cash out in any currency besides USD.