Hi Yaqoob,
Welcome to Microsoft Community.
I'm Hahn and I'm here to help you with your concern.
I'm sorry for the inconvenience you are experiencing with Microsoft Edge on your Samsung Edge mobile device.
Regarding the issue with TikTok videos not playing and font size on Google on Edge, i suggest clearing the cache and cookies of the browser. You can do this by going to Settings > Privacy and security > Clear browsing data. Make sure to select "Cached images and files" and "Cookies and other site data" before clearing the data.
You can try to reset the settings of Edge mobile and update it to the latest version. This might fix some glitches or compatibility problems that prevent some videos from playing. You can also check if you have any extensions that might interfere with the video playback and disable them if necessary.
Disclaimer: Your browser automatically saves temporary internet files to help pages load faster. Clearing this cache will sometimes fix website issues. Please back up all your personal files first, such as Favorites, to ensure you do not lose data.
If you encounter any issues while using Microsoft Edge or have any suggestions, you can give feedback to the Microsoft Edge team using the "Send Feedback" window:
This is the easiest way, just click "Send Feedback" in the upper right corner of your browser icon, then describe your issue or feature request and attach a screenshot and email address. This allows the Microsoft Edge development team to create tracked issues and resolve them as quickly as possible.
I hope these suggestions can help you fix the issues and enjoy using Edge on your Samsung mobile. If you have any other questions or feedback, please let me know.
Your Sincerely
Hahn - MSFT | Microsoft Community Support Specialist