You asked
Is the panasonic lumix g100d good for beginners?
Here is what the site says about that.
From Panasonic Lumix G100D: Panasonic Lumix G100D: A mirrorless camera by Panasonic with a 20.3-megapixel Micro Four Thirds sensor, announced in 2023. The G100 updated with USB-C and an OLED viewfinder. Specs - Maker: Panasonic - Mount: Micro Four Thirds - Sensor: Micro Four Thirds, 17.3 x 13mm, crop factor 2.0 - Resolution: 20.3 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2023 - Type: mirrorless camera Focal lengths ...
From Your first camera: Don't overthink it: Every current camera from a major brand is good. The differences that matter for a beginner are size, handling, and which lenses the mount offers. Hold a few in a shop if you can, pick the one that feels right in your hand, and buy it used if you want to save money: see buying used.
Quoted from this site's pages.