I’m traveling to Bangladesh next month and I’m not sure if my phone will work there. Does anyone know if I can use an eSIM in Bangladesh and how I would go about setting that up before my trip?

I’m traveling to Bangladesh next month and I’m not sure if my phone will work there. Does anyone know if I can use an eSIM in Bangladesh and how I would go about setting that up before my trip?
As someone planning to travel to Algeria, I’m wondering: Does Algeria support eSIM technology for mobile devices, or will I need to purchase a physical SIM card upon arrival?
Hey guys, I’m heading to Azerbaijan soon and I’m curious – is eSIM a thing there, or will I need to go old-school and grab a physical SIM card to keep my phone working while I’m exploring the country?
Is eSIM currently available from mobile carriers in Vietnam?
Is eSIM technology supported by mobile carriers in Mexico, and can I reliably use an eSIM for my device while traveling there?
If I get an iPhone 8, will it be compatible with eSIM? Can anyone tell me about it? Please!
Does the iPhone 7 have eSIM support, or does it only work with physical SIM cards?