Yes, but the bios will still need to go to the device with the bootloader on it for you to make the choice.

In the case that the external is unplugged or had a damaged wire or something, it won’t work.

Depending on your circumstances you may be better served by just installing Linux on the external device, not writing grub (the bootloader that lets you choose) to your internal drive and instead just booting from it like a usb.

I don’t generally recommend that to people, but if you absolutely will not use partitions no matter what then it’s a less complex way of accomplishing some tasks.

+1 for both comments above.

Back up your current disk! If you do it properly you can always restore your current operating system if this experiment doesn't pan out.

Fedora KDE is an excellent starter choice. The DE will feel relatively familiar coming from Windows and Fedora is very much a batteries included distro. Red Hat guides are excellent and very useful in that family.

this is a good solution

I've switched to using it as my daily driver, and depending on what applications you use, the water is either fine, or is full of piranhas.

Using VR, for example, is still a massive pain in the ass, and requires me to boot into windows when the tenuous stack of software driving it on linux decides to stop working because it's a full moon out.

Touch anything the wrong way, and you're digging through random config or build files to fix it.

off topic, but I saw you mentioned vr on other post so wondering wether you considered setting up vr mocap? For casual hobbyist like me stuff like glycon3d in enticing though I don't know what type of mocap you're after.

Havent put my headset on in over a year now that I think about it, ill check out glycon 3d, I want a user mocpa library version of mixamo, I feel like enough ppl have suits and do this as a hobby that theyd be down to upload some free ones at least. The only platforms that exist don't let ppl sell/list their own in an easy/consistent way.

I just don't enjoy the animation part that much, I like combining existing mocaps and then adding vfx, where I spend 75% of my time.

Thats fair. TBH mocap data cleanup is also a hassle and I haven't decided to delve deeper into that.
CMU has mocap data with permissive license you may find it interesting if you haven't already.

VR nevee worked for me the way it should like on Windows.

It did work many times and was playable. But soft stuttering was there. People literally gaslighted me on the internet that there is no stuttering while there obviously is

Stuttering is present in SteamVR due to lack of async reprojection.
Thats why I'm using Envision which is an interface for a stack of a bunch of different open source VR stuff.

It's quite a bit more finicky and fragile, but it at least has reprojection.

Is there an easy Guide? Would love to play around with it on Arch Linux with Wayland KDE

https://lvra.gitlab.io/ is a good start.

Some stuff you'll have to mess around with.

I've found that some random issues like unexpected frame stutter or VR headset not being detected need a full power off of everything to fix sometimes. (Power off / disconnected. Reboots don't work)