The only problem with the non-subscription LightRoom is that it hasn't been getting updates for new cameras for a while now, so images from all the new toys can't be read by it.
I understand that there are no new profiles. However I downloaded the A7M II profile with the last upgrade along with the lens profiles and I am sure that the old Leicas are in there and the lenses. I have old lenses, non-Leica, and they are common so chances are that they are included. The new Voigtländers, no. It is a moot point anyway. There is an independent fellow who builds new LR lens profiles which can be imported sans Adobe. I edit little, have only recently turned the DNG's back on for the Leicas and I guess I will do it for the A7M III also. I doubt I can outsmart the Sony engineers in what they do when they make a JPG. IIRC there is a Linux JPG editor which mods the file but does not overlay and save the file unless instructed to do so. The effect is that all the changes are in one change which degrades the JPG less. FWIW I see little degradation anyway. Pixel peeping is not my game. Image, composition, color, interest, yes. Counting eyelashes, no. We can't all love the same woman.