We get a lot of these questions , nothing to worry about . You'll get all types of activities there and some your not familiar with but that's your stock email .
Hi , welcome
Wont give you much information just it's been in your activity as you go in and out that app.
Those things in Google activity , drive you crazy trying understand system apps or other apps it just to keep track of what's going on in your account .
Folks, "LGE" means LG Electronics. This is LG's stock email app, and it's in your activity because your email app is periodically checking for email. Don't worry about it.