Smart meter tripping RCD anymore than anecdotal evidence?

From the Eaton website, page 35:

”Recommended connection of installation with RCDs and surge protective devices is depicted on Figure 80. In socket circuits with an RCD with a sensitivity of 30 mA, type G with short-term delay and endurance up to 3 kA must be used.”

https://www.eaton.com/content/dam/eaton/products/electrical-circuit-protection/circuit-breakers/xeffect-rccb/eaton-rcd-application-guide-br019003en-en-us.pdf

Is that referring to a Type G RCD or a Type G SPD, I am assuming it is a RCD but it seems it could be either or both.

uk.rs-online.com/.../6963663

From the Eaton website, page 35:

”Recommended connection of installation with RCDs and surge protective devices is depicted on Figure 80. In socket circuits with an RCD with a sensitivity of 30 mA, type G with short-term delay and endurance up to 3 kA must be used.”

https://www.eaton.com/content/dam/eaton/products/electrical-circuit-protection/circuit-breakers/xeffect-rccb/eaton-rcd-application-guide-br019003en-en-us.pdf

Is that referring to a Type G RCD or a Type G SPD, I am assuming it is a RCD but it seems it could be either or both.

uk.rs-online.com/.../6963663

Whatever it is was taking out the 300 mA upfront RCD that trips at 210 mA, so I replaced it with a main switch having over sheathed the SPD phase cable with heat shrink.