My Samsung S20 is in for a screen replacement so I purchased a sim free Motorola G50 from Tesco mobile.

When I look into the menus I don’t see any advanced option menu.

What I’m looking for is the option to turn on WiFi calling but Tesco Mobile don’t offer this feature which I wasn't aware of, so.

Can I get into some hidden menu to turn it on?
Can it be flashed so I can use my Sky sim (that’s what I’m using at mo)?

Been out of this game for years hence the questions.

Thanks.