Here's a collection of images taken with the Sony RX100 VII at high ISOs to give a sense of how it performs in low-light conditions.
DxO RX100 VII sensor review: “doesn't quite match the exceptional imaging performance of the previous generation” – sonyalpharumors
Sony RX100 VII High ISO Sample Images Test & Review
Sony RX100 VII Review - 200mm in your pocket! - Compact Shooter
Sony RX100 VII High ISO Sample Images Test & Review
Sony Cyber-shot DSC-RX100 VII Review: Digital Photography Review
Sony CYBER-SHOT RX100 VII Photography [SAMPLE IMAGES] Compact Camera with Impressive ZEISS Zoom Lens
Sony RX100 VII Sample Images (Tried & Tested)
Sony RX100 VI Review Impressive Compact Camera
Sony Cyber-shot RX100 VII (RX100M7) Full HD Samples, ISO and lens review
Sony RX100 VII High ISO Sample Images Test & Review