Microsoft Teams: what's the differences between JIRA Cloud and JIRA Server

[congteng]

hi guys, i found that there are two addons on Teams Marketplace, and i want to make sure the differences them

Jira Cloud: https://appsource.microsoft.com/en-us/product/office/WA200002140?tab=Overview

JIRA Server for Teams: https://appsource.microsoft.com/en-us/product/office/WA200002278?tab=Overview

my questions are:
1. if my deployment is Jira Server, can i use Jira Cloud instead JIRA Server for Teams

2. is JIRA server only compatible with JIRA Server, what if my deployment is Data Center?

3. is Jira Cloud compatible with Data Center ?

Thanks in advance