Ki potency has already been multi planet since namek saga.
Goku repelled Vegetas planet destroying galek gun with a stronger Kamehameha and Vegeta survived. Frieza who was 1000x stronger kicked away a planet destroying attack from Vegeta.
New frieza, weakened,slapped earth apart, Ss3 Goku punched apart a planet ten times as dense as earth(it's small size makes it more impressive due to gravity )
Cell's solar system blast would be kicked away By someone twice his strength.
In dbz ki and attack potency as well as durability continue to increase on cosmic level but due to ki control the area of effect of attacks the environmental effects can be minimalized, God ki seems to be easier to control in this area as Goku and Beerus could fight around a city without destroying it but still have planet crushing blows (unless you think they were weaker than nappa who could destroy one with his finger ).Ss3 Goku showed that it's easy to mess up cost alot of lives,When he deflected fat buus attack which wiped out millions and destroyed king kais planet (If it was populated he'd be a shithead ).
Area of effect is under constant control in fights Golden Frieza accidentally let out an attack smaller than his fissure blade attack on namek But noted he lost some control momentarily But in a weaker state he slapped earth apart.
Buu tier enemies are dimension rippers But can still control their attacks (toei took note of this and made super buu almost destroy reality against vegito )
Beerus beat Ss3 Goku (someone who could easily deflect solar level attacks, potentially rip through dimensions (this goku was stronger than his buu saga self, cell showed that zenkai doesn't dissapear, goku continued training to the point he can visualize one shotting cell in ss ),and punch planets at least ten times as dense as earth with less than one percent of his power with his finger a bigger feat than anything he can do to a planet.
Regarding Gokus buu saga lifting feat their has been alot of controversy, time to set things straight. Akira said that the flying technique of the z fighters makes them weightless to fly;consequently, lifting weight takes a huge hit. It was more of a ki control and flying feat rather than strength as he's been shown lifting more on the ground as a child.
God tier characters are past dimension ripping, sun destroying and galaxy collapsing but control their area of effect. When measuring a characters true destructive capability one would have to see their full power blast with destroy intent and no area of effect restriction,just how cell was revealed to be solar level. Beerus has been performing greater than solar and dimension ripper feats while barely trying. Never even seen him charge a blast for longer than a second.