ZZ top? They haven't made a studio album since 2012 and nothing relevant for 20yrs.
System of a Down just released 2 new songs. Their first album was '99 and they still have the original members. They meet the criterion, but have been essentially been inactive since the albums from 2006, other than playing some festivals.
Primus, first album was '90 and most recent was 2017 and have had the same lineup since '90.
Weezer and Korn have had member changes.
RHCP has had lineup changes but wound up back with the '80 members, but no studio album since 2016.
The old rockers aren't getting any younger and we hear news of greats passing too frequently. Perhaps our current hardships will cultivate some new rock like it has in the past.