See this IRS info
https://www.irs.gov/individuals/international-taxpayers/fulbright-grants
In TurboTax (TT), enter at:
Federal Taxes Tab (Personal for H&B version)
Deductions & Credits
-Scroll down to:
--Education Expenses and Scholarships
After answering no to having a 1098-T, answer yes to qualifying for an exception (that gets you to the entry screens). You will have to go thru the whole education interview to get to the scholarship screen. At the scholarship not shown on a 1098-T screen, enter the amount of the grant. When asked if any was used for room and board, answer yes. Then enter the amount you want to be taxable (usually all of it), in the pop up box. R&B are not "qualified educational expenses". So, this is how you tell TT that it is taxable. Note the wording at that screen “or other expenses”. You didn’t have to literally use the scholarship for R&B. This will put it on line 8r of Schedule 1 (this line is new for 2022).
If you received some tax form (1099-MISC or 1099-NEC) for the grant, reply back for additional suggestions.