Another thing: Russian and Arabic, like English, are world languages spoken by hundreds of million of people. Wouldn't a more obscure language provide a stronger PW?
So, I went on YouTube and typed 'learn Faroese' into the search bar. Faroese is very obscure - it's not even on Google Translate and only 50,000 people speak it. Outsiders don't know it. I selected orsaka meg (excuse me).
Here's a fairly strong PW: OrsakaMeg1986!
Here's an even stronger PW because the capitals and exclamation mark are completely random: orSakamEg26!07
So, if you choose a PW based on Faroese nobody will guess it ... apart from me 😉