My local European ISP provided me /64 IPv6 addresses since at least 2020 and had so called sticky IPv4 addresses since at last 1999. They were sticky because they did not change for years if the box was connected within 15 min.
This was possible because motivated individuals held technical positions in the ISP while the management has been totally incompetent and was later jugged outright corrupt.
Because of corrupt management and public scandals, my ISP has been sold to Orange. I am afraid this will end the 25 years of technical excellence as well.
