For your desktop, I suggest you install Linux Mint (Edge edition, to make sure the newer kernel included there supports your hardware better). After installing it, right click on the panel, and install the ‘Cinnamenu’ applet (it’s available for download from the window that opens when you click Applets). Then, place it where you want after enabling “panel editing”, and then right click the new menu to customize it as you like. Cinnamenu is a more modern-looking menu than the default Mint, with larger icons. Please note that in June or July, there’s going to be a brand new, major version of Mint. Think of Mint as how Windows should have been, a better version of it. This is my Linux Mint laptop: files.mastodon.social/…/6183bb790dcb8365.jpg
Now, if you want something that is closer to MacOS’ look and feel, then you would need to install Gnome, and use Gnome extensions to enable the dock to stick to the main desktop. For a Gnome distro, there’s Fedora 40, the new Ubuntu, or Debian (IMHO, the most stable of the lot, but slightly older software version). This is my Gnome desktop: files.mastodon.social/…/3c3c5c7e35ac726e.png
And if you have a large hard drive, feel free to install 3 of these (e.g. Mint, Debian or Ubuntu with Gnome, Fedora KDE), to test drive them all. They can all happily live next to each other in separate partitions. Just make sure you create a /boot partition (this holds the bootloader for all OSes), and then 3 large ones to put the / (root) partitions of each distro (these will hold the actual OS for each).