Just noticed this HEIC problem.
I used to use png with my old phone, but Samsung uses this new format that I had never heard of.
It seems like qoto or mastodon server generally doesn't accept this format when uploading.
It's time to create an alt on other servers to domoretesting, I guess.
@skyblond You can use a third party app to interface with the Camera2 API. This allows one to capture DNG or RAW images even if the standard photo app doesn't support this feature.
I recommend OpenCamera for this. You can also have it take a jpg image along with the DNG or RAW format. The raw formats can be converted to many different formats.
@AmpBenzScientist I found the option in camera settings. Samsung called it "high efficient format" and hid it in a sub page. 
@skyblond On my OnePlus I just had to resort to using the Camera2 API with OpenCamera to get DNG captures. The stock camera app made awful quality photos. The benefit of using the Camera2 API and a DNG capture is that I get the absolute best quality captures that my cameras can handle. I'd highly recommend trying it or looking into the RAW formats if your camera app supports it.
It gives a much better quality image after it is processed. It takes up more space but the difference can be stunning.
@AmpBenzScientist
Thanks, I'll have a try. I think samsung can output raw file in the camera app. But considering how they applied their mysterious algorithm, I think call the api directly will give a more native result.
@skyblond I actually just got my hands on the S23 and the stock camera app is flagship quality. I got a DNG and JPEG capture with the app. I took a super slow motion video and it took multiple frames with the light on and off. We have 60hz in the US so that's 60 cycles a second. I was able to get numerous frames of each cycle.
That's the first Samsung that has been impressive in a long time. The UI is complete garbage.
@AmpBenzScientist Also, the OneUI is sometimes confusing. And the settings are not very predictable. Most of the time I need to go through all the settings to find what I want.
@skyblond I assume you have the not American version so you might be able to put a custom OS on it if you wanted.
I trust Chinese hardware as an American. I can't wait for China 2025 to kick the stagnation and incompetence out of our industry. Another technology centered race, oh it will be glorious.
@skyblond That's the way to do it. I forgot about Knox being such a pain for anything but malware.
@AmpBenzScientist I purchased the HongKong version because it's much cheaper than the Chinese version.
I generally don't trust Chinese firmware, and I'd prefer Google, so I always flash my phone with HongKong or Taiwan firmware.They usually share the same carrier network band and offer a native Google Play framework.
The hardware is kind of out of my control (where I really don't have a way to build my trust), so I generally trust them. However, I do concerned when the vendor doesn't put enough effort in security while you think you're secured.
Also, due to the knox feature, I can't flash any firmware I want. But a HongKong phone can flash Chinese firmware, and a Chinese Samsung phong can flash HongKong firmware. That's good enough to me.