You can check if you are using Xorg or Wayland in the Settings -> System -> About -> System Details page. If you’re using Wayland, you’re all good, nothing changes. If you’re using Xorg, you may notice some changes. If you’re using NVIDIA on Ubuntu 24.04, you’ll be on Xorg by default. If you’re using a later version or AMD/Intel, you’ll be on Wayland be default.

To keep it short, X11 was the old protocol for creating and managing windows. Xorg implemented this protocol. But both the protocol and implementation have many shortcomings that are difficult to address for a multitude of reasons (breaking compatibility, poor code base, a ton of work, etc).

Rather than putting lipstick on a pig, a new protocol, called Wayland, was created. It was designed for modern needs and tries to avoid the pitfalls that X11, Windows, and MacOS have. It doesn’t just copy what those three did, it’s more opinionated, so some people love it a lot (like me) or hate it a lot because it changes the way things have to be done and simply does not implement some functionality, either purposefully or because the work hasn’t been done yet.

I don’t use Zoom enough to know, but it probably still works.

My last experience with the Zoom app on Wayland (a few months ago?) required me to do a manual config file change to launch the app properly. And Zoom says they fixed the screen sharing options, not sure how true that is.

Getting ready for Zoom to have instructions to install i3 rather than fixing their Wayland support.

You could install Linux Mint onto a flash drive. Though keep in mind that flash drives aren’t that robust, the flash chips are cheaper and will fail faster than SSDs.