Deykun

I've added BÉPO and AZERTY (some letters I had to keep below). I think that BÉPO actually has an interesting pattern:
https://imgur.com/a/uupLDMJ

The site has tooltips showing letter percentages:
https://deykun.github.io/diffle-lang/fr?p=about-language

Peak for other languages: English - 9, Spanish - 10, Polish - 12, German - 13

Yes! I originally found it posted on their TikTok account:
https://www.tiktok.com/@thehuntington/video/7321812764421475630

;)