Problems with Mendix

1.) Twitter:

In your profile you can add a Twitter account. I tried with a x.com address, it did not work, cause it requires it start with twitter. Twitter is now x.com.

2.) Github:

It should be possible also to add a github link to your profile

3.) Reactions:

Reactions are shown white on white on my system, I could read nothing:

4.) Profiles of reactions:

I'd like to get to the profiles of the people who have reacted. This is not possible (at least for me, I don't know how)