The Google app offers a menu to access most major Google services with one touch. It is a web wrapper to the various Google web sites accessing the services.

I regularly use it to access Gmail and Google Drive.

Note the window scrolls to the right for access to other Google services.

The Mail app in Windows 10 certainly works with the Microsoft ecosystem, but it also works well with Gmail. While it doesn't offer some special features of Gmail, the basic functionality is handled nicely.

This image shows Gmail as accessed through the Windows 10 Google app. It looks like the Gmail web page because essentially it is.

The only issue is clicking email address links in emails, as it opens a separate, unwanted occurrence of the Edge browser.

Google services can all be accessed through the browser, as shown with Gmail in the image. Based on my experience, all of the Google web pages work fine in the Windows 10 Edge browser.

Google Calendar works in the Windows 10 Google app just as it does in the web browser. I use multiple Google Calendars and they have all worked properly from the initial Windows 10 sync.

My preferred method of using my Google Calendars is with the Windows 10 Calendar app. All of the calendars are represented in a pleasant format.

I don't directly access my contacts often, but when I do I use the People app in Windows 10. All of my 1,000+ contacts are accessible. I usually enter contacts in the address field of an email, and it works without any problems.

I don't use Google Tasks as I have been using the online service from Toodledo for years. This works in the Edge browser flawlessly.

I normally use the Maps app in Windows 10, but when I need to get into Google Maps the Windows 10 Google app is the way I do it.

When I need access to my photos in the Google cloud, the Google app in Windows 10 is my preferred method.

Email aside, Google Drive is the most-used Google service I access on a daily basis. This is done through the Windows 10 Google app, and it works very well. I can move files back and forth between local storage and Google Drive with ease.