Modern video projectors also display color channels sequentially and also exhibit that effect. Also, this particular CRT technology was not only used in oscilloscopes: https://www.youtube.com/watch?v=z-q8ehzHeQQ
Not all video projectors, only color wheel DLP projectors (which were once the majority of the home projector market but not sure if that’s still the case). Always drove me nuts but apparently most people don’t notice it.
Somewhat related but I just remember when Numega had a color image digitizer with a black and white camera and color filters for the Amiga. I guess the idea is very old because IIRC the very first color photos were taken that way. And speaking of projectors - I think there were projectors / projection
TVs that used three black and white CRTS with filters that were merged to produce the final image. Could be higher resolution that way.
Skip forward to 9 minutes and the fantastic vid talks quite a bit about how Tektronix invented the LCD colour shutter tech calling it NuColor.