I made some comments above on the posts of others, and said I was excited to try COSMIC, but I'd probably wait until it was more ready. I also said that I didn't feel any need to try Pop!_OS.
Thanks partly to the fact that a few people confirmed that I could get a more Cinnamon/Windows feel than the default top panel and bottom dock gives, and partly thanks to the fact that a Pop!_OS and COSMIC developer is lurking in this comment section taking feedback, I decided to give it a trial, not just COSMIC, but the whole new alpha release of Pop!_OS.
I had 180 or so GB of unpartitioned space on one of the drives in my main home workstation, so I threw the alpha ISO on a Ventoy and booted it up. I went into the installer, and chose the custom setup. There seemed to be no way to have it smartly use the unpartitioned space, so I clicked the button (I forget it's label) that brings up gparted. I tried to create the needed ESP and root partitions, but it seemed to hang and didn't actually create any partitions. I rebooted back into the ISO and tried again with the same result, then booted into a live gparted ISO and created the partitions that way. After this, the installer let me choose my new partitions under the advanced install. Installation went smoothly, and on post install reboot the PC launched straight into the new Pop!_OS installation. Automaticaly detecting other installed operating systems and setting up a way to boot into them as alternatives to Pop!_OS would have been nice, as this machine has Windows 11 and Arch on my main drive and on a secondary drive, besides some storage partitions, there are 2 different other Arch installations (used for playing with different DEs and things) and now this new Pop!_OS installation. For now I am having to select a bootloader from the boot menu of the PCs firmware to hop between Pop!_OS and my main grub which has all the other operating systems available. I imagine I can find a way to have my main grub list an option for this Pop!_OS installation, but maybe not? I don't really have any experience with systemd-boot.
So far I have only messed around with it for an hour or so. I'm writing this comment using the alpha right now. One thing I noticed right away is that firefox doesn't have minimize and maximize buttons but the distro specific apps do. I was indeed able to get the panel moved to the bottom, remove the dock, and add an app tray to the panel on the bottom. This is great. The panel can be shown on all displays simultaneously, another win for me. Having an auto-hide for the panel is also a must have for me, and luckily, it's an option. My only complaint is that it hides whenever any window is open on a display, not just when one is maximized or otherwise trying to use the screen area that the panel is in. This will probably be only a minor annoyance for me though, as the tiling is why I'm really here, and with that turned on, I'll rarely have a floating window anyway. The tiling seems great so far, and is definitely an improvement over using the Forge extension in GNOME as I am currently in both Arch at home and Debian at work. I love being able to stack windows while tiling, as well as being able to toggle whether a certain window is floating or tiling, and the whole experience of managing the tiled windows just feels better somehow than it does with Forge on GNOME.
Kudos to the COSMIC team for the great work so far, and thanks again to Liam for this article and those in these comments who convinced me to give the alpha a try. I plan to mess with it more in the near future, and I really think COSMIC can eventually replace the "GNOME with a hodgepodge of extensions" which I am using now, perhaps even before it leaves alpha.