Moving posts from one channel/Team to another?

Just in case it helps anyone else I just came across AGAT Channel Management and it claims to allow moves, copies, merges of channels in most situations. I am considering it for one client even if just for long enough to clean up the channels. They have a cost calculator on the site seems to be about $4/user.

I'm currently setting up Shared Channels to mirror the old existing channels in a Team. The old channels have lots of posts in them and I would really like to be able to move them to a new shared channel so end users still have access to the old conversations. Is this something that will be available? If any one knows if i've missed something in the replies then please let me know, but so far it doesn't look like it's available and it's been requested over a few years now.

Is this possible now with MS tool or anything else?

For now, this is a marked on it´s own. The management of Teams content is left out from MS native functionality, leaving these management tasks to third parties. And all uses cases can be solved using third parties, but for now I have not found one provider that solves all issues - you´ll have to purchase multiple to get all the functionality an enterprise actually need.

Okay. Let's see if any other experts have any better idea.