I heard that the new Fedora workstation is only Wayland. Right now i use Ubuntu with snaps for isolation, including my document viewer app.
Let’s say i need to open a pdf document. Which way of opening it would be more secure - open it on Ubuntu with document viewer as a snap (snaps are isolated) OR open it on Fedora with document viewer as a rpm (are rpm apps isolated because of Wayland? Or are they more secure because of the more uptodate libraries?)
I hope someone with advanced Linux knowledge will answer here, as you are probing an advanced area.
I do have some level of Linux knowledge though, so I will say that the two things you are comparing and not really that comparable.
Snaps are a package/application format, so it would make more sense to compare it with flatpak to see which has better isolation.
Wayland is about the desktop environment interface, so you can have wayland with both snaps and flatpaks. I use Fedora with flatpaks, but you can install snaps on Fedora too. That way, you’d have both snaps and wayland at the same time. In my case, I have both flatpaks and wayland at the same time.
Hopefully someone with the correct isolation knowledge will help you out here with comparing snaps and flatpaks.
No, the RPM application is not isolated because it is in Wayland.
They are more updated compared to your apt or snap app in Ubuntu and therefore have some hotfixes that you don’t have.
Yes, and in this case you may find some helpful information here.
Not recommended, by default you will be missing security that you only find when getting Snap in Ubuntu. Discussed in the forum before.
The security bottom line is that they are both somewhat secure and don’t offer substantial amount of security over the other.