My SoT has dropped from about 6.5 hours to 4 hours, but mostly because the phone seems to never go into deep sleep.
I used to have a standby drain of maybe 1% per hour. Now it's around 4-5%!
I have the same apps exempt from screen-off-close: Slack, Google Voice, Nine (for work email), Netguard (for ad blocking). Android OS and Android System are by far and away the highest battery users regardless of whether I've been browsing or if it's on standby.