How to downgrade from this worst update

[madwarrior]

After updating to ui 6.0 and reseting phone. Many apps stops working and showing incompatible.

Secure folder unable to fetch sms for upi apps.

Samsung Wallet stopped using know security (as logo of know in right bottom corner is not there).

Considering all this major bugs I want to downgrade to one ui 5.1, any way to do so?

Please help me to get out of this loop hole.

[madwarrior]

What will happen from that?