As you allude to, discovery is harder since you don't have an algorithm pointing you in the direction of content you're likely to engage with (yes, engage with, and not necessarily enjoy) but once you have found the right people to follow, it's more rewarding because it's your community, not owned by a single corporate entity.
Although I didn't use G+ much in the later days, its closure showed my how irresponsible it is to rely on proprietary platforms. I'm committed to never be active on a proprietary, closed social media platform again.
My main account is here: https://functional.cafe/@loke