The option I use as an alternative is
Settings > Network and Internet > Wi-Fi >
Select the connection you want and use the sub settings icon > Advanced > Auto-connect > ON
In other cases do the same but have the connection . . . . . . . OFF
It’s more fiddly as you have to do this for individual Wi-Fi connections.
However saying that ther were times when I went out and about and couldn’t connect as I had ‘Use only 5GHz’ when there was only 2.4 so I had to then change my setting to 2.4 and then 5 when it was appropriate.
Now each Wi-Fi account has it’s own setting, so I’m not sure the feature request mentioned is necessary.