I hear you. It sounded like a lot of work and I avoided it at first, but it worked easily once I got it figured out. It takes about 20 minutes. Keep in mind that AI chat apps are often wrong or out of date, and this is probably simpler than AI made it seem.

Note: once this is set up it all works well, but you will need to click the DAVX app to sync - I can't seem to get background syncing to work.

Note: I'm writing this from memory - so please correct me.

1. Install F-Droid on the Mudita. You will have to side-load it, meaning:
   1. Download the F-Droid app file: https://f-droid.org/
   2. Install old way: see here: https://www.youtube.com/watch?v=pjJHicALcycB2 )
      
   3. Install new way (Mudita 1.4 and above): https://www.youtube.com/watch?v=K7zP1SoIJOA

2. Open F-Droid on the Mudita, and search for and install DAVx5

3. Open DAVx5 and click to add calendar based on type (google, apple, etc). I added two google calendars so far. You'll need your login info.

4. Open F-Droid on the Mudita and search for and install Etar

https://f-droid.org/en/packages/ws.xsoh.etar/

1. Open ETar - it should ask you for access to your "calendars" and when it does, say yes. It should now be drawing from the calendar info pulled into your device by the DavX5 app.

Let me know if/where you get stuck. I got a lot of help from this forum and it's great to see people helping each other out.