I too have a Hybrid Camry (2022) and a hybrid Rav4 (2021) and in either situation, if your gas engine is running "99.9%" of the time, then you are either driving 99.99% of the time freeways, forcing EV-only mode, or you do not know how to drive a hybrid...to drive a hybrid in the same way as a non-hybrid is to get far less MPG than you could.
In both our cars, our motors only run about 30%-40% of the time in 75% city driving. Both our vehicles get around 20% better MPG than stated on the window sticker, and here is the kicker (and this is counter-intuitive) we drive faster than must drivers around us.
There is this thinking that getting the best MPG from hybrids is to drive them slow, slow off the line, slow up to cruising speed, but doing these things actually hurt MPG. In short, the trick to getter better than EPA/sticker MPG is to get off the line fast, and up to cruising speed fast, then hold it there steady.
We've only owned hybrids since 2012, and we have learned how to eek the best MPG and at the same time stay at or above posted speed limits.