Greetings, Questions about using the 2021 Desktop version to Amend

Greetings, I downloaded the 2021 Desktop version to Amend the tax return. and I was not charged any fees for the license/ download., should I have been charged a fee or is it normal to be free, or was it included in what I paid back in 2022 for the Online 2021 tax return? Also, I originally filed it with the Online version. I have been reading the EULA for the Desktop version but it says: Under, Discontinuation of Policy and Software support it says: shall not be supported beyond October 15, 2024. If I use the Desktop version which is the only option it gives me to Amend the 2021 year, will it allow me to Properly Amend the 2021 Tax return or not?