$ pgrep -lfa chromium-browser
5361 chromium-browser --type=zygote
5384 chromium-browser --type=gpu-process --channel=5327.0.1602829409 --supports-dual-gpus=false --gpu-driver-bug-workarounds=1,11,15 --disable-accelerated-video-decode --gpu-vendor-id=0x8086 --gpu-device-id=0x0d26 --gpu-driver-vendor --gpu-driver-versi
5481 chromium-browser --type=gpu-broker
5603 /usr/lib/chromium-browser/chro
5612 /usr/lib/chromium-browser/chro
5626 /usr/lib/chromium-browser/chro
5630 /usr/lib/chromium-browser/chro
5639 /usr/lib/chromium-browser/chro
5643 /usr/lib/chromium-browser/chro

$ cat /proc/5643/cmdline
/usr/lib/chromium-browser/chro