Problem - Garmin Connect web page menu unusable.

This is my SECOND attempt to get an answer, my first attempt seems to have been ignored when sent through support.
Garmin has made changes to web based connect, which makes it impossible to use. Left tab rendering has turned to rubbish on all of my browsers. I can't do anything with the web based connect. It's mostly blank, dark mess, drop downs don't work, and can't access any of my activities or other items. This is a relatively new problem  in recent months. Whatever change to the website was made needs to be fixed. It's useless. I've spent a lot of money on garmin products, and the courtesy of a response is expected. I've attached a screenshot.

  • I've the same problem with the menu and recently asked Garmin support to fix it.

    I use Windows 8.1 and Firefox 115.23.0esr.

    ==========

    Excerpt from my question to Garmin support:

    Until 2 months ago, Garmin Connect Web worked fine. Then it started that the menu disappears.

    Users speculate that Garmin has discontinued support for older operating systems and browsers. However, I cannot find any official statement from Garmin confirming this. Therefore, no one knows if this is a problem or if it is intentional. It's good practice for a company to officially inform its customers about changes that affect the usability of the products it sells. I have the impression that not even the moderator of the forum is informed by Garmin whether this is a problem or intended.

    The main question is whether the problem will be fixed by Garmin or whether users will have to fix it themselves by installing a new operating system or customizing the browser.

    ==========

    Unfortunately Garmin support told me:

    Garmin Connect has been tested on Macintosh and Windows operating systems and supports the following web browsers:

    * Chrome
    * Microsoft Edge
    * Safari (version 6 or higher)
    * Firefox

    Garmin only supports the current version of the listed browsers. Other operating systems, browsers and versions may work, but are not fully supported.

    ==========

    So, it's unlikely that Garmin will ever fix it.

    EDIT: And also have a look at this thread

    https://forums.garmin.com/apps-software/mobile-apps-web/f/garmin-connect-web/410185/menu-disappears