Dear @Filion Jelena,
Thank you again for reaching out and for keeping me updated on your situation.
Currently, Microsoft hasn't published any official documentation or statement explicitly confirming changes to the Lists user interface. Since Lists is a web application, any UI-related issues would typically follow the steps I mentioned earlier. It is possible that this behavior has recently appeared only for some users and hasn‘t been widely reported yet.
In the meantime, I would like to suggest a workaround that may help improve the readability of comments:
Select the list item > Details.

In the Details pane, drag the edge outward to expand the panel.

This will create more space for the comments section, making it easier to read.
If you are using SharePoint, you can follow the same steps.
I completely understand how these limitations can feel disruptive, especially when the experience differs from what you are used to. This is not only about appearance, but it can also affect how efficiently you work day to day.
I’m really sorry, I know this isn’t the outcome you were hoping for. As a forum moderator, I hope you understand that I don’t have the ability to modify or escalate product issues directly. However, I strongly recommend submitting your feedback through the Microsoft Lists · Community This is the most effective way to ensure your voice reaches the product team and can be considered for future improvements.
Once you've submitted your feedback, feel free to share the link here in the comments. I’ll be happy to upvote it to help bring more visibility. If you prefer, I can also submit this great idea on your behalf. Just let me know, and I’ll post it for you and share the link once it’s published. I’m here to help ensure your feedback gets the attention it deserves.
Additionally, as other users have raised similar concerns and may not be aware of where to share their feedback, I hope this response helps clarify the situation and suggests a potential next step. Highlighting this information can make it more visible to others in the community who may be facing the same issue, making it easier for them to find guidance and contribute their feedback as well.
Thank you again for your time and for raising this important usability concern.