AX3000T running well but some queries

After eventually successfully flashing the AX3000T with Firmware 23.05.04 I have been using it "successfully" as an AP now for a month with an ethernet connection back to a non OpenWrt router.

Today I decided to check I could access Luci via the web portal which is when I found it was only http. On attempting to change it to https I was confronted with this

Now I saw an older topic about adding something to Luci but am unsure as it was also suggesting this should already be included. I didn't want to blindly force the change as last time I did something similar I had to start afresh......

I don't know how to check whether the right package is included so welcome any instructions. (Edit - I found details of installed packages and it appears that luci-ssl is installed)

The other issue I have recently noticed is that my laptop, most of the time, connects via 5GhZ and shows WPA3 when checking properties on Win 10. Sometimes however I get this.

I don't understand as all the 4 SSIDs on the 2 radios show Encryption as mixed WPA2/etc etc
Again can anybody throw any light on that please as I am concerned that at times there may be no encryption.
(Apologies if the pics are too big)