"Single click access" with Libkey Nomad: The browser extension provides a direct PDF link via popups "Download PDF" to, among others, licensed content on publisher websites, PubMed or Wikipedia.
Or get directly to the article you are looking for via libkey.io by DOI or PMID: the website combines information about e-journal holdings of the University of Bern, authentication and article linking to give you direct access in seconds.
The integrated "Unpaywall" function automatically finds Open Access articles as well.
Best to try it out right now using the search slot below!