I can confirm, that #4 solves the problem of displaying the viewfield on a Drupal 10.3.6.
However, in my case there is still a problem of displaying a full list of entitiy references, which i want to display in a content type field. It just displays one line. Maybe
https://www.drupal.org/project/viewsreference →
is a better solution for my use case? I will check...
Like #13 the patch does the job for me in Drupal 10.3.6.
Thanks for the MR #16
I was happy when I found this issue and its solution - after a couple of hours! :-)
I am working on a d7->d10 migration with 220 field_instance(s) to be migrated. It was frustrating and time consuming to get crashes of "drush mim" due to this array_filter issue (yes, crashes). I was not brave enough to suspect the core code to have a problem. It was only after i found this issue thread here that i simply removed the function call (patch #6) and all the problems disappeared! I am so happy, that you discussed this here.
However, i think the patch should find a way into the core code for all the d7+ drupal versions.