Just gave MicroOS a try.
As a person who tried Silverblue & Kionite before, I must say the experience with MicroOS is, wow, much better! I am a traditional Chinese user (and know a bit Japanese) and I have struggled to get Chinese/Japanese input installed and utilized in these two. But CJK input in MicroOS works like a charm. Related packages are installed already once you selected your language during installation, all I need to do is add the input methods that I have always been using.
Multimedia also works out of the box as I went to HTML5 video test page with Firefox and saw no problems with playing the video.
I'm always a KDE supporter when using SUSE, coz I love how polish KDE is under SUSE. But GNOME looks gd as well. The only thing looks weird is it lacks YaST, I only noticed that when others pointed out. It's not SUSEish once there's no YaST, right? ;) But I guess YaST modules wouldn't be that useful in MicroOS as everything in the system is read-only?
Software installation is the most confusing thing for me. I figure out there are 3 ways to install software under MicroOS:
1. transactional-update pkg install Pretty much like traditional zypper in but needs to reboot every time, it makes the concept of immutable OS irrelevant if you install everything this way
2. toolbox More like the traditional way than 1 actually. My understanding is that it installs software in a separate container?
3. flatpak No explanations needed I guess?
I still have to think and choose from the above 3 ways when installing software. For example, I am a heavy user of the Telegram messenger. I wanted to get Telegram installed, and I have to think: Method 1? No, it's not a system software. 2? May be, let's give a try...only I've installed bunch of dependencies I realized that Telegram is a desktop software so Flatpak is obviously the best answer! It's a bit confusing tbh, if MicroOS is the new stable release in future, surely users need time to adapt.
At this time I still haven't tried system-wide update as there are no new snapshots for TW, not sure if the GUI way works (I found on the net that GUI update seems waiting to be finished but the QA list does mention about the test of GUI update?)
From my short experience I think MicroOS is an interesting concept, it's a funny project and I am looking forward to its development, but I think it has a long way to go to replace Leap.