The update so far is good particularly for its ACF and front-end submission, though some ACF Field Types still need additional updates, particularly ‘wysiwyg editor’. How about inline related post tools? Are we not talking about this for a while?

I had the same issue on my site. https://sciencetrend.ca. But I resolved it by disableing 3 h1 tags.
I deteced two sets of h1 tags. One set was with desktop version logo (header), and other set was with the mobile version logo (header). Nothing with fotter logo.
I found one h1 tag while on top of the page. Another h1 tag I found while scorolling down, or scrolling up.
Therefore, in may case, there were four h1 tags (two with desktop and two with mobile).
I disabled three of the four: one desktop, and two mobile. Finally, the issue resolved.

I am exactly facing same issue. First, using CPT UI plugin I created custom post type (Guest). Second, using ACF plugin created a field groups called ‘references’, which has only one field ‘Related Publications’. Third, created a rule, show this field group –> if post type–> is equal to –> post or (guest).
However, I was unable to find any ACF field that can be selected (suppose: ‘related publication’ in my case to edit either a post post or guest post.

The problem is still there. However, I disabled the autoload option, so you may not see it now.