and  tags in a text field of format Full HTML are not rendered in a field based view
I confirmed on 8.7 that the following basic snippet is able to be used in Full HTML out of the box:

&lt;form&gt;&lt;input checked="checked" name="gender" type="radio" value="male" /&gt; Male&lt;br /&gt;
&lt;input name="gender" type="radio" value="female" /&gt; Female&lt;br /&gt;
&lt;input name="gender" type="radio" value="other" /&gt; Other&lt;/form&gt;


It's possible your particular snippet is being hit by the "Correct faulty and chopped off HTML" Format setting, so try it without that and see if it lets the code stay. Of course, this is not an ideal setting for a commonly used text format filter, so this snippet may be better off in a custom plugin block, or creating a new text format w/ the "Correct faulty and chopped off HTML" turned off, that can be used sparingly as needed. 

UPDATE based on Views usage:

If you're using rewrite, it won't be possible out of the box to have it not strip tags, it's something baked into Views. You can override it at the theme layer - if for example you are using the body field, you create a views-view-field--body.html.twig file in your theme, and then put the desired wrapper tags around the {{ output -}}, e.g.:

&lt;div class="foobar-wrapper"&gt;
{{ output -}}
&lt;/div&gt;


And turn off rewrite in Views UI.