Warranty and care is not working properly after ui9 official update problem is not resolve so please give me some solution

I'm facing a issue of my s26 ultra. Youtube application is reset of all feed if someone is also face this problem so please tell me

Somebody knows when ui 9 stable update is coming if anyone knows so please tell me

When are coming stable update for s26 ultra if somebody know so please tell me

Dear team samsung my galaxy s26 ultra is missing software update and google play system update option in security and privacy setting and when I'm use youtube so it's lagging multiple time so please resolve this issueThank you