Can I just fill it out here

[VolvoGirl]

Fill what out?  Do you need to file your return?

[Critter-3]

If you qualify   you can use one of  the 10 IRS FREE FILE options to file a fed & state return for free ... but you must log in thru the IRS site :

https://www.irs.gov/filing/free-file-do-your-federal-taxes-for-free

 For Filing Season 2021, you must make $72,000 or below to use one of the 10  IRS Free File partner offers.