By default, conversation view is enabled in Gmail web version (PC) and app (Android).
If you don't like it, then you can disable it and here's how you can do that on PC and Android:
Note: Keep in mind that the change you'll make will apply to your Gmail account. In other words, if you turned off conversation view in the web version, it will reflect it in the app and vice versa.
That's all. All done.
If you want to enable conversation view, then follow these steps:
Under "General," find "Conversation View." Beside it, you can see "Conversation view on" option. Click on it.
Click on "Save Changes" button at the bottom.
Tap the "Got It" option in the popup and that's it. All done.
If you want to enable conversation view, then follow the above steps.
I hope that the information in this guide is useful to you. If it is, share this guide with your friends.
How to Disable Conversation View in Gmail