What is your experience when you have to use the QWERTY layout? Is it a frustrating experience or can you use it just fine given that Colemak is more similar to it than Dvorak?
At this point I'm pretty terrible at QWERTY on a physical keyboard. I'm fine with it on phones and tablets for some reason, but my brain is pretty hard-wired for Colemak on physical keyboards at this point. I also use a Kinesis Advantage keyboard which adds to the context switch when I have to use a different computer (though this is less significant for sure).
If it's a Mac, Colemak is one of the pre-installed layouts, so if I need to work on someone else's computer I'll just enable it while I work on it and remove it afterwards. Otherwise I can manage, but it does slow me down quite a bit, and I'll have to look down at my hands pretty frequently. You immediately notice the extra workload though: Colemak is pretty low effort, but QWERTY just feels like finger moshing to me now.
I'm pretty sure it's possible to remain proficient in both, but QWERTY was sufficiently destructive to my hands that I use it as little as possible.
I use colemak as well. I find it way more rare than you might think that you have to type in QWERTY. There are probably couple of times a year I need to, and I can always get away with some quick hunt n' peck in those rare cases.
I've used Colemak for 5 years now. I've always just hobbled along with Qwerty, not pecking, but not really touch typing.
However, I rarely need to use Qwerty. It's less than once per week. The only times are when I'm in the UEFI settings on my laptop, or fixing my wife's computer. Any other time I have my own user, and can switch the layout to what I like.
I think it probably depends on if you have a separate keyboard or not. I have an ergodox on my home pc and work laptop, but my laptop is qwerty. I don't even notice moving between keyboards, I guess because they are so different.
Having an external keyboard also means that other people can still use my work laptop when needed (pairing etc)
If it's a Mac, Colemak is one of the pre-installed layouts, so if I need to work on someone else's computer I'll just enable it while I work on it and remove it afterwards. Otherwise I can manage, but it does slow me down quite a bit, and I'll have to look down at my hands pretty frequently. You immediately notice the extra workload though: Colemak is pretty low effort, but QWERTY just feels like finger moshing to me now.
I'm pretty sure it's possible to remain proficient in both, but QWERTY was sufficiently destructive to my hands that I use it as little as possible.