Same as you, the only option I've ever seen, including in Apple's own instructions, for converting from APFS back to HFS+ involves reformatting your drive, but "Convert [HFS+] to APFS" is an option in Disk Utility.
Thanks for the offer, but no thanks.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
