You can make the reg circ saw into a track saw by switching base plates. This is a standard setup in England I've seen https://www.partshopdirect.co.uk/dewalt-dcs575-dcs576-shoe-base-with-guide-rail-slots-pN472354/ : r/Dewalt
Dewalt DCS576N 54v XR Flexvolt Circular Saw 190mm Plunge Rail Base + Tstak Case Buyaparcel
7-1/4” Cordless Circular Saw Head-to-Head — Some Guy with Tools
DEWALT DEW{DCS576N} DCS576N XR FlexVolt Circular Saw 190mm 54V Bare Unit 5035048645826 | eBay
Check Out This DeWALT Cordless, Brushless Circular Saw! - YouTube