Nope, definitely not. Which is why I suspect maybe OP moved from a shared network name between both bands to separate ones, and just didn’t realize it was using 2.4 before.
What people fail to realize is, unless you have a dedicated 5ghz radio, you don’t want low performance (and likely poor signal) devices on 5ghz. It will drag down the performance of all your 5ghz devices, and those devices probably do actually need the bandwidth that 5ghz provides, unlike these cams.