This involves using a different filament, like support filament or PLA/PETG mix, to have the support be one filament and your print be a different filament. This makes them easier to remove.
by 3DMusketeers
Grant @3D Musketeers #SMRRF24 on Twitter / X
by ThisPrintedThing
Using PETG to Support PLA on Bambu X1 Carbon
Extra tip from video:
by Modbot
Super Clean 3d Printer Support Removal (Combining Filaments)