[cmdshiftf4]

Unless recruiting or sales is part of your job, the best approach to LinkedIn is to set your profile up well, connect with the people you know and then go to Settings & Privacy -> Communications and switch on email notifications for direct messages you receive. Then you'll only ever have to login should you get an email about a message you might be interested in replying to.

There is absolutely nothing of value on LinkedIn for the average person beyond being a place to host your resume for discovery.

[olcor]

You don’t even need to log in for replying to messages. IIRC you can just reply to the email and that would get relayed.