Mobile gaming is the new industry standard, accounting for over 60% of all...

https://varimail.com/articles/what-does-the-uk-gambling-commission-actually-require-from-operators/

Mobile gaming is the new industry standard, accounting for over 60% of all player sessions today. The shift is practical: players prefer the friction-free experience of HTML5 instant play, which lets you jump straight into a lobby without bulky downloads