When I mport RAW pics from iPhone library to Lightroom mobile they automatically convert to JPEG! I didn't have this issue before and don't know how to fix it.
Hiow are you importing into Lightroom? You should use the import from photoroll button in Lightroom itself, not the share button in Photos. The share button will always convert to jpeg. You can also directly import into Lightroom from whatever you can access in the files app. So if you save the raw from google photos to your files app. Hit the import button in Lightroom and select files and choose any raw file there. The files can be on any cloud service or even stored locally on your device in the files app.
I'll help you figure this out. In the Photos screenshot, the image is stored in iCloud as well. That could cause only a JPEG to be sent to Lightroom as the original is on iCloud.
Lightroom is non-destructive by design, it would not in any way change the original like this. Does this happen with all images? Try importing images in Lightroom before uploading to iCloud & share sample TIFF images with us if the issue exists.
That happens only with RAW/TIFF images all other ones are good. I tried many time to import photos directly from Google photos to my Lightroom and it's the same. I attached a sample of a TIFF image.
Similar to iCloud, Google only keeps the JPEG of the image on the device.
Try opening a RAW/TIFF image in Google Photos > Three dots at top right > Download & then use the Share button to Import into Lightroom mobile. Let me know how it goes.