Allow changing or disabling spell check in the ChatGPT desktop app on Ubuntu

I use the ChatGPT desktop app on Ubuntu and write prompts in Polish. The message input box underlines Polish words in red, apparently because spell check is using a different language.

Is there a way to set the spell-check language to Polish or disable spell checking in the desktop app? I could not find such an option in the app settings.

If this is not currently possible, please add a setting to choose the spell-check language or turn spell checking off. The red underlines are distracting when writing in Polish.

OS: Ubuntu
ChatGPT app version: 26.924.22138