Modern Communication site OR Modern Team site for creating a common area site for our company

We want to build a common area site collection, where this site collection will be doing the following:-

1. we will embed a yammer group inside the home page, so users can discuss and chat.

2. we will add some images libraries to share our company's images events and others.

3. a technical area, to create pages about some technical articles, videos,books, etc to share with all users.

4. everyone should be able to contribute to this site collection...

But am not sure if this common area site should be a modern team site or modern communication site.Now I am planning to create it as a modern team site, for those main reasons:-

1. Modern team site will have office 365 group and can be connected with MS teams if needed (unlike communication site which does not provide this capability).

2. The modern team site has additional modern web parts such as planner, jira, etc... which are not available inside communication site.

so now on phase one, achieving the above 4 main requirements can be done by either having a modern team site or modern communication site. but in the future we might need to benefit from having office 365 group and/or the ability to access this common area using MS Teams. so if we chose modern communication site we will not be able to do these... so in other words, i did not find any thing unique in communication sites compared to team sites, while modern team sites have many additional modules and web parts not found on communication sites. so can anyone adivce on this? when would someone prefer communication sites over modern team sites?

Thanks