>> If you’re a *current* member of these societies then you should have good access to journal content.

>I believe this is true for ACM, but for IEEE not so much. You have to pay for a digital library membership _in addition to_ your standard membership

ACM is the same.  At $99/year membership is a bargain by ordinary
professional society standards. But they charge an additional $99 for
access to 21st-century Digital Library.content.