Wifi switch between 2.4ghz and 5ghz

Hi, There are multiple routers in my residence and some are 2.4ghz and others 5ghz . The problem is my phone keeps switching between 5ghz and 2.4ghz . I've used wifi analyzer and I could see all the routers around me. They all have the same name and they are all close to me like 5m for the 2.4ghz 6m for the 5ghz ect... Do you have a solution to force use the 5ghz routers only ? Or to use a specific router ? ( I don't have the permission to do anything to the routers) so the solution must uses the phone . I have a redmi note 7 with miui 12

Thank you for your help