Depending on what "insurance stipend" means, and who is paying it and why they are paying it.; It could actually be self employment income.
But assuming it isn't, and the money is in box 3 of the 1099-Misc:
Enter the 1099-Misc
On the next screen Describe what the payment was for
On the next screen select "none of these apply"
On the next screen select "No it didn't involve work like my main job"
On the next screen select "I got it in 2021" ONLY (even if you get/got it in other years, this is a necessary workaround for the no intent to earn money situation)
On the next screen select No, it didn't involve intent to earn money
TT will put the amount on line 8z of Schedule 1 as other income
