He dies twice in endgame after atomising the stones and from being dusted from a 2014 era. Then he dies in What if S1 and Multiverse of madness, and then he gets sucked by a portal in S3 and then gets pushed by a disabled Black panther by sacrifice himself which lets infinity hulk to come into play. It feels like people still got those nostalgia flashbacks but that's not a bad thing.
I can't believe that they're keeping Thanos's legacy alive when we see him in post endgame projects if he's important to plot relevance or a background character.