OK, while waiting at the Monday Mug for the quys to show up, I booted the HP X360 11" up into Win10 and went into the HP help, on the notebook, to see if there was a BIOS update available.
After having to spend a lot of extra time to download and install more HP software, that enabled the computer to report to HP what model it was, there was a BIOS update available.
I did the BIOS update successfully and then I booted up the OpenMandriva LX 3.0 Distro from a bootable usb pendrive.
There was no option with this Live Distro, for a persistence file to be used on the Pendrive, to keep any changes made to the distro.
Therefore, before the BIOS update, the Terminal commands to fix the wifi problem (the command blacklists a certain "acer-wmi" file) could not be kept, after doing the required reboot of the distro.
After the BIOS update, I now found the wifi, in OpenMandriva, to be working! :-)
It was a chore to get the wifi in OpenMandriva to work, however. All the different wifi Access Points available, were listed but the da*** KDE Wallet kept poping up, wanting me to set a password. :-(
I didn't want to be bothered with this KDE Wallet, but it didn't seem to allow my password for the Access Point to be applied.
I eventually gave up and set the KDE Wallet password.
So it now appears, that after the BIOS update, the HP x360 can now get the wifi to work, while running the OpenMandriva Distro from a bootable usb pendrive! :-)
Edit, Aug 19 - It appears the BIOS update has not helped with getting the wifi to work, with a few other Distros, that I have tried. I would still need to issue the Terminal command, to fix the wifi.
I am finding that the HP X360 runs quite hot on the bottom, while streaming YouTube movies/videos. You won't be leaving this notebook on your lap, for very long, while watching a movie, with it.