The Arc in the spotlight came on Gohan and we get to see him and action and many new ch character were also introduced here like androids and Mr Satan
Well this can be divided in two parts there is frieza and cooler and future trunks one and other is Frieza coming back to life in his golden form.
Vegeta turns in majin Vegeta and we see him to still be from his control but still fought Kakarot in his power up form,
The arc where Saiyans we introduced and the leter Z was added to the name representing the series end but we know where it went.