Suggestion for Microsoft Edge on Android

Hossain_Shahriar 

Use VPN extensions, there is no need to have a built in VPN. any browser that has it such as Opera is not doing you a favor, they have access to your data, plus they are slow as turtle.

Download manager is powerful already, just needs some tweaks

social media downloads are against terms of service of those websites such as YouTube, Instagram etc so you have to find extension or other ways to do what you want to do.

if those websites wanted you to download their content easily, they would have put a download button themselves.

Edge is fast, maybe check your connection?

Import/export is available in Edge settings. edge://settings/importData

between desktop and Android you have to use Sync.