With Summer20 release the ability to debug the mobile version through the F12 debug console in Chrome was gone. When trying to switch to the mobile version, the application crashes into Classic and does not allow switching back to Lightning. As I understand it, this is due to the fact that Salesforce has abandoned the mobile browser version and now necessarily requires Salesforce1.
They even released an apk that allows you to debug. But through the emulator this application takes a long time to update my deployed code and it is impossible to show the console and look on the sizes of the components.
Maybe I'm doing something wrong, explain me? How to develop the mobile version of the LWC component on a PC? Before Summer20 everything opened correctly through F12.