Smartphone 15-20k Basic OTT, Social Networking and Messaging apps

Hello everyone!!

Please suggest a phone for a 50 year old. Phone should be sturdy.

1. Budget? - 15-20k

2. Display type and size? Whatever best available.

3. Dual sim? - No needed.

4. Preferred choice of brand? Samsung

5. What camera option you want (flash, front facing camera)?

6. Preferred operating system? (Android, iOS,Stock Android etc). Android

7. Preferred connectivity options (Dual 4G,802.11AC/5Ghz(not 5g mobile network) wifi). 5G is needed

8. Primary use of handset (multimedia, camera, internet, gaming etc)? No gaming

9. Any specific mobile phones in consideration? Samsung M35. Nord CE3 Lite.

10. How much RAM and Internal Memory you want? 6GB RAM and 128GB Internal

11. Any other info that you want to share.
How is Samsung M34? Any known issues in M34 or M35?
Not considering :
Nothing CMF Phone 1 because user is used to Samsung UI/UX.
Not considering any other brands for same reason.
Please suggest good reliable case which can take some abuse.

Thanks in advance!!