If you want to display other Blogger widget on the mobile view of your Blogger page,

First you have to activate a “custom” mobile template instead of using one of the default Blogger mobile templates.
you need to add mobile=’yes’ attribute to the tag of the widget, right inside your blog’s html.

The “mobile” attribute lets you control which of the widgets on your Blogger page will be available in mobile view. It can be ‘default‘, ‘yes‘, ‘no‘.

List of widget displayed by default:
Header

Blog

Profile

PageList

AdSense

Attribution.

Next, is to go to “Template” > “Edit HTML“
Click on “Jump To Widget” and click on the id of the widget you want to show on the mobile view of your blog.
This will take you directly to the <b:widget> tag of the widget.
Eg: let make widget HTML1 show on mobile view on your blog page

Read more:https://ultrshare..com/2018/08/step-on-how-to-show-any-gadget-on.html?m=1