Inter  Suggested by akira1975 

Judging from the top right on the lowercase f, I think they used one of the older versions of Inter.
https://github.com/rsms/inter/releases

For example, the f in the version 3.19 seems to work.
https://github.com/rsms/inter/releases/tag/v3.19

Thank you so much for finding this font for me! It really saved my life.