Are you sure? Both HomePod and HomePod mini already support Apple Lossless and FLAC, so what is the reason you are saying they won't support Apple Lossless Music? A reference in one footnote? I agree it is not clear, but if they support lossless and they are airplay 2 which supports it, I just don't think there is enough information to draw your conclusion with anymore than a maybe
Well, the main article says that Macrumors has received confirmation that Homepod does not support the new Apple Music "Lossless" option. And other news sources report the same thing.
I suspect that the issue may be that in stupid Apple fashion they are redefining what "Lossless" means.
According to the Apple press release:
"Apple Music’s Lossless tier starts at CD quality, which is 16 bit at 44.1 kHz (kilohertz), and goes up to 24 bit at 48 kHz and is playable natively on Apple devices. For the true audiophile, Apple Music also offers Hi-Resolution Lossless all the way up to 24 bit at 192 kHz."
Ripping a CD into ALAC is merely 16bit at 44.1kHz. Perhaps the Homepod can do that over Wifi.
However, "Apple Music Lossless" is also 24bit at 48kHz, which may be the kicker for Homepod hardware.
Though "Apple Lossless" (ALAC) is a container format, so if any hardware device supports ALAC, it should support all variants of it.
Though it seems Homepod does not actually support ALAC, it just supports -some- variants of it.
Apple really are losing it...