Hello RobbieSnr,
Welcome to Apple Support Communities.
It looks like the language on your keyboard keeps changing, and we'd be happy to look into this with you.
When did you first notice this issue?
Can you recall anything changing on the Mac around the time this started like updating the software or installing a new app?
To get started, please check out these helpful links below.
Change Keyboard settings on Mac
Specify a keyboard type on Mac
The reason why we’re recommending the steps above is because they directly address the issue you initially reached out to the community about, which is that after upgrading to macOS Monterey, your keyboard keeps changing from British to British - PC.
If the original problem persists after trying the previous steps, please provide us with specifics on what you see for more help, and we will continue from there.
Cheers!