Is your feature request related to a problem? Please describe.
No
Describe the solution you'd like
Previously navbar was removed in embedded mode:
https://github.com/RocketChat/Rocket.Chat/pull/12025/files#diff-e7c838650739eb4cc3317679e1881c6d
However, it is necessary in some cases. Therefore, now we cannot update to the current chat version (in the new versions, important bugs for us have been fixed).
Is it possible to make an extended-embedded layout or another way to activate the top panel in embedded mode?
Additional context

Can you please fill in some more installation details - see the bug template - and refer to the version numbers?
Eg we are using version x and it works. We tested on version y and it doesn't.
Also specify which browsers you have used etc.
Thanks
Can you please fill in some more installation details - see the bug template - and refer to the version numbers?
It's not a bug, it's feature request.
Or do they also need the details you requested?
I think it is a regression if it worked before and doesn't now.
So yes please (it is always worth adding full details regardless of the issue - saves a lot of time when triaging bugs)
Previously navbar was removed in embedded mode: https://github.com/RocketChat/Rocket.Chat/pull/12025/files#diff-e7c838650739eb4cc3317679e1881c6d
However, it is necessary in some cases. Therefore, now we cannot update to the current chat version (in the new versions, important bugs for us have been fixed).
Is it possible to make an extended-embedded layout or another way to activate the top panel in embedded mode?
See 0.70.0-rc.0 release description:
Hidden admin sidenav on embedded layout (#12025)
I see navbar where I can do things in embed iframe.
Previously, top navbar was always displayed. It would be nice if you had the ability to customize the display for different embeds

Navbar is hided:

@sdelfi do you want an embedded layout with header right? @reetp its not a regression because now after my changes the code is working as we expected, but I had the same feeling (and missed an extended version)
@ggazzo that's right, it was earlier possible.
Now we use iframe chat in several places and in some we would like to be able to turn it on, and in some - not. If it is, of course, possible to make customizable.
A more flexible solution would be to accept an addition parameter ?layout=embeddedTopNavOn and let that override the setting.