After the Update to Version Opera 70 the option "Improved Search in open tabs" disappeared from opera://flags/. Any suggestions?

Hello,
after the latest update to Upera 60 on Android, flow was introduced under settings. But it is impossible to connect the PC to opera. Only connecting PC to opera touch works under left menü bar Flow...
EDIT: It works now, after going to Flow on PC, top left 3 dots and doing emergency reset. Then restarted opera on pc 2 times , choose connect on android and opened www.opera.com/connect on pc
after connecting each phone, I restarted opera on pc

After the Update to Version Opera 70 the option "Improved Search in open tabs" disappeared from opera://flags/. Any suggestions?