@Brennan Wilson
1. Yes, more accessibility issues should be addressed in InDesign
2. MS Words Checker i a help, but not a great one, so i would no use this as a refernece.
3. There are possibility to check, even not from Adobe itself, see e.g. Keith Gilberts "Check document for accessibility" (https://www.gilbertconsulting.com/scripts).
4. Acrobats reading order (or Z-Ordern) is NOT an accessibility requirement in ANY law, guidance. Even if Adobe (e.g. help pages) claims this different. Tags are the only things that matter.
Acrobat should use Tags as basedes for roflow, but thats nothing for the InDeisgn tesm.

The fact this has been a feature request since 2018 and still isn't implemented is absurd. Even Microsoft Word has an accessibility checker. You should be able to set and check everything to create a WCAG-compliant and passable PDF directly in InDesign so all you need to do is export an interactive PDF and know you're done. Having to constantly check in Acrobat, go back to InDesign and adjust is just time-wasting. Defining the reading order in InDesign would be great too, as articles doesn't follow it, sometimes you don't want the bottom layer to be read before something that's over it. Lead the charge on creating accessible PDFs, Adobe.

A WCAG colour contrast checker would be a huge help!

Actually, I created one for InDesign for this very reason. Was so frustrated between going back and forth. Reach out to me on LinkedIn and I will give you the URL Not sure I am allowed to post it here. Here is a video of it in action https://www.youtube.com/watch?v=dj2-rlpJ3mE

All visual design should be accessible. This is becoming more and more of a compliance requirement. Adobe needs to enable accessibility compliant design. Checking colour contrast is fundamental to this.

very much needed!

Or at least a way to put the pdf export tagging information on items independently, not only in a paragraph style 🙏🙏

TIP! Check out these solutions :)
https://creativepro.com/a-script-to-check-and-prepare-indesign-documents-for-accessibility/
https://trello.com/b/BoOoVOse/tools-for-born-accessible-publishing

A color contrast checker, color blindness checker within InDesign would be very helpful. I am not usually connected to the internet so going over to Color.adobe.com is not a solution.

Having the Accessibility Checker feature that was shown at Adobe Max is something we need like yesterday!

Updated features would be a blessing to both InDesign users and every single person in the world! Important stuff!

A color contrast checker built in to InDesign would be a great help.

This is a very broad request. I think we need to determine what the feature would actually check for. For example, I want the "color blindness" preview, such as the one in Illustrator.

Also, we should have an easy way to check to see if all images have alt tags.

Bevi's list in the comments below is very good, too.

This is becoming an essential feature. ASAP please Adobe.

an inflight check for accessibility would be great. A simple text v background contrast checker would be really useful too.

Switching between ID and Acrobat to check accessibility is a time waster. Please add this feature.

This little gem of a fix would relieve me of a lot of frustration.

Yes, please!!!!

Adobe is the originator of the PDF and PDF reader. You really should be leading the charge for accessible PDF documents!!

This would be incredibly useful!

Adding my voice to this.

Accessibility should be a priority. Microsoft Word has had an accessibility checker since 2010.

I have come across a plugin out there, but it required a subscription worth hundreds of dollars a year.