either do linux mint or ironically arch (as a starting off point!)

linux mint is a simple to follow gui from a liveusb.
arch is trickier, but I actually find archinstall is really straightforward and fast. once you unfuck the computer, you can take your time to choose something more apt.

Choose a distro, follow their installation guide.

If you want to compleetly start over you can write a new partition table. I usually boot a gparted live disk and prepare my partitions there.

https://gparted.org/livecd.php

For old PCs I can recommend Linux Mint. It’s easy to use and low on ressources.

https://www.linuxmint.com/download.php

In short, yes, Fedora, Ubuntu, or whatever will be able to install on your laptop just fine. Since you seem relatively new, I would suggest Mint as it is aimed at new users.

App installers, the way you are accustomed to from Windows, aren’t really a thing in Linux. Most applications are installed by your distro’s package manager. For those that aren’t, there is often a choice of either downloading a package for your distro ( debs in the case of Debian-derived distros like Ubuntu and Mint, rpms for Fedora and friends ) or using something like Flatpack. But really your package manager will handle most things you are looking for.

Another comment: fedora is a good distro. Mint is also good. Both are pretty straightforward, will do what you want, and are easy to work with. They are recommended a lot for good reason.

There are three main types of software.

1. software installed from the distribution’s repositories
2. flatpaks - which are basically sandboxed software bundled with their own dependencies
3. app images - which are basically executables like a windows .exe

When looking for software, I think most people install them in that order. (Some distros are immutable and therefore 2) is often the first choice but that’s getting ahead of ourselves a bit)

Hope this helps.

For an older system I’ve been very pleased with the performance of Bodhi Linux. And the UI is very customizable.

The answer to starting fresh is to format the entire drive and reparation the whole thing. All operating system installers ship with tools to do that. Some are easier to use than others, but they are all there. You’re looking for “custom install or custom partitioning or manual partitioning” or something like that. Usually during the “where do you want to install” questions.

It’s not hard to do, but it’s often hidden a little bit because formatting and/or repartitioning the wrong drive nukes the drive.

In your case, just go to town. Know how big your drive is, delete all existing partitions, and the new ones you create should total up to the size of the drive. Just make sure you’re doing it to the right drive if you have more than one :)

With Linux, you can get fancy making separate partitions for home and stuff, but you don’t really need to worry about that if you don’t want to. You can just nuke the drive, and then tell the os to “use the whole drive” and just let it do its thing.

If you want to understand it deeper and better, I’d suggest watching some videos for your distro.

Have fun!

What device is it? It’s unusual for Ethernet to not work .