HEIC, great format, saves a ton of space. 12MP photo on my iPone is only 600 something kb.
But that's it.
Nobody is taking advantage of the tiny file size, not even Apple. Proof?
iCloud Photos shared album will still resize your photo into measly 3MP in JPEG, which has larger filesize than the original higher-res HEIC. Super dumb. You would think with iPhones as old as the 6s being capable viewing heic, Apple would just take advantage of it. Nope. You have amazing camera on your iPhone? Tough luck, your family can only see 3MP and 720p of your photos and videos, in old formats that takes more space. Genius Apple!
How about Google? I tried uploading to Google Photos as a shared album. Google stored it as is, heic full 12MP. Okay, good start. But when you save it or download it on your Android phone, Google "kindly" auto-coverts it to JPEG that is more than twice as large in file size. WTF? No options anywhere in Google Photos to prevent this.
Gee these silicon valley companies cannot even figure this out after all these years?