Not certain I understand these questions.
If you are talking about spanish language and italian language RGB keyboards, Framework said they will consider adding additional language RGB keyboards if they see enough demand. There are costs involved with creating and stocking additional items, overhead in keeping stock at fulfillment centers. RGB in every language would be a lot of additional keyboards. Where there is demand / enough sales, they may do it. In the meantime, you can get RGB Clear ANSI and apply keyboard stickers in the language you want. If I recall, keyshorts.com said their stickers can let backlights shine though. I’d ask them to confirm.
The operating system controls what language your keyboard is set to. You can change it to any language you want on any computer.
And you can get keyboard stickers that show multiple languages at the same time. Keycap stickers for the clearcap options - #2 by MJ1
Many people do that.
Did I understand your questions correctly?