This largely depends on the ICANN policies and their definitions of Renewal and Registration Grace Periods.
The Renewal period is variable, but the Registration Grace Period is pretty much 30 days everywhere.
The ERRP only covers gTLDs, right? Have you seen any ICANN policies requiring ccTLDs to adopt the same grace periods. As far as I know, ccTLDs can do whatever they want.
ICANN policies only govern global domains. Country domains set their own policies; for example, .eu expiration period is 45 days, not 30.
WHO IS policies also vary wildly, for example .de domains do not show registration date in the WHO IS, so it's not possible to know if a domain was dropped and re-registered.
https://www.icann.org/en/contracted-parties/consensus-polici...
Here's an example from denic.de: https://www.denic.de/en/domains/de-domains/domain-deletion#c...