Are US Treasury Bills permissible as investments?

Today I saw that BUSD ( A stable coin i.e ) crypto whose value is pegged to USD. In their report they are saying that 96% is backed by cash and cash equivalent and 4% by US treasury Bills.

I researched a bit about US treasury bills and i saw that it is a kind of lending and it might have fixed interests. So riba might be included in it.

Could anyone provide a fatawa regarding this matter if the stablecoin is halal and if investing in US treasury bills halal?

links to info:
Report on the backing asset of stable coins:
treasury bills:

Wa alaykum salaam,

US treasury bills are indeed interest bearing. They are not Shariah compliant.

Allah knows best

thanks a lot.
I would like to mention that if any stablecoin ( crypto currency pegged to dollar/euro ) is backed by treasury bills then that would also be haram?