Beats me. I do not represent the brand.
I guess worst case scenario you're a keycap set away from any keyboard layout you wish to have.
A cursory search on Google returned plenty of search hits on how to convert keyboards between ANSI and ISO.
Also, apparently there are ANSI+ISO keycap sets on the market.
Anyway, I don't have a dog in the race. Anyone who is on the market for a 150$ keyboard will surely be able to Google stuff that suits their fancy.
That is only relevant as far as picking keycap sets go.
As I've pointed out, there are plenty of ANSI+ISO sets on the market.
Beyond this point, the relevance is zero.
It's a non-issue.
Observe this image of ANSI vs ISO layouts: https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F...
Let's say I have an ANSI keybord, and I buy a set of ISO keycaps?
First of all, the enter and shift keys are not going to fit, so let's reuse the keycaps from the ANSI ones. Now we do put in all the keys and... my #/~ key is left over. There is no switch on the keyboard to mount the keycap to. ANSI keyboards do not have the same amount of keys.
Not to mention my \| is not in the right place - the ANSI shift key covers it's proper location, so guess I'm putting an undersized keycap on the top of enter. No amount of rebinding is going to let me have the left half of left shift do one thing and the right half do another.
These ANSI/ISO keycap packs you're thinking of are not indicating they will let you convert one keyboard to another. They just mean they include both shapes of enter keys, both sizes of left shift and \|, and a #~ key which doesn't exist for ANSI keyboards.
I'm not aware of any main Logitech keyboards that support changing the keycaps. I couldn't even find replacement keycap sets for my board when I looked a year ago.