@AJAS_M_M
My app, which was stuck in Apple's review process as mentioned. After that my App rejected multiple times due to the complex login procedure of my app requiring additional further explanation. However, it was finally approved on February 18, 2026.
Regarding Apple's comment on January 26th: "Thank you for your post. We're investigating and will contact you in App Store Connect to provide further assistance. If you continue to experience issues during review, please contact us."
I actually followed the link provided there and requested an "expedited app review" by navigating to "contact us > Get help with a new issue > App Review > request an expedited app review".
Based on my experience, I believe this is the only thing we can do on our end in such situations. I hope your review process concludes successfully as well.