But nowdays companies giving UFS 2.2/3.1 for 128GB and UFS 3.1/4.0 for 256GB. So what if it happened same here路‍♂️

This is what would have happened. When Samsung S21 FE SD888 Launched Globally it would have been sold with UFS 3.1 but for India they would have launched UFS 2.2. That's why you believe that S21 FE SD888 have UFS 3.1 but it doesn't have. Also you can...

This is what would have happened. When Samsung S21 FE SD888 Launched Globally it would have been sold with UFS 3.1 but for India they would have launched UFS 2.2. That's why you believe that S21 FE SD888 have UFS 3.1 but it doesn't have. Also you can...

Due to?

When its heating up ?