Thanks for sharing the logs - the only relevant thing my eyes can spot here is:
[2023-01-06 10:39:02.521] [error] MAS: An error occurred importing the existing configuration Error: Attempted to register a second handler for 'request-has-downloads'
at IpcMainImpl.handle (node:electron/js2c/browser_init:193:325)
at DownloadsManager.init (/Applications/Mattermost.app/Contents/Resources/app.asar/index.js:52883:25)
at new DownloadsManager (/Applications/Mattermost.app/Contents/Resources/app.asar/index.js:53553:10)
at IpcMainImpl.<anonymous> (/Applications/Mattermost.app/Contents/Resources/app.asar/index.js:53566:22)
at IpcMainImpl.emit (node:events:539:35)
at updatePaths (/Applications/Mattermost.app/Contents/Resources/app.asar/index.js:27898:23)
at migrateMacAppStore (/Applications/Mattermost.app/Contents/Resources/app.asar/index.js:78180:32)
at initialize (/Applications/Mattermost.app/Contents/Resources/app.asar/index.js:129:35)
Not sure if this is really related to what you’re seeing - let me consult some of the developers.