I have a very old laptop that was running linux mint but it started to feel slow after a couple years of that installation and I decided to try lubuntu, which has been great and really faster in comparison, but I cannot find a way to properly set it up to work with external monitors. I found a guide that used xrandr but to no avail. Is there a way to configure it in a way that it behaves like it does in mint? So that it doesn't alter the whole desktop on the laptop monitor everytime a cable is connected? Right now it does this crazy thing of changing the taskbar to the external monitor and messing up the desktop icons and the only way to revert it is to use the graphical monitor manager to select the external monitor as the main one and invert the left-right order of the displays once to then invert them back to how they were, but even then some of the desktop icons disappear and when I try to save that configuration and select it again after rebooting it keeps reverting to how it was at first. So I just need it to take any new external display as an extension without changing anything else, but I don't always connect the exact same monitor, because that's what I really use the computer for: showing slides in different rooms. So is there a way to make it work like this or should I go back to mint even if it's slower? I should mention I'm a beginner in all things linux but I can follow instructions.

so i'm running win 7 on an Acer aspire 5740G 3gb ram intel core i3-330m and im thinking of installing lubuntu, already flashed an usb with the 24.04.4 version but im still kinda sceptical since i also like to play games from time to time and i kinda worry that i wont be able to play my games such as (rimworld, naruto ninja storm rev, hitman blood money nftmw and so on) since ive read that i need vulkan and that my machine cant run it (im new into pc stuff so idk if thats s true) so idk if i should do it or not