It appears that the CR government has made some changes to tourist visas - length of stay.
During this week's Wednesday presidential press conference, President Chaves announced the following:
The Regulations for the Granting of Visas were reformed on June 15, 2023, regarding entry to Costa Rica (articles 7, paragraph1) v

, as well as the Immigration Regulations {number 156), increasing the maximum stay for non-residents in the tourism subcategory (Tourist Visa) from 90 to 180 days, for people from countries in the first group countries according to the General Guidelines for Entry and Permanence Visas for Non-Residents.
This appears to be factual since a friend sent me a photo of their visa stamp dated Sept 8 and it was for 180 days.
The first group include: USA, Canada and etc.
Hope this helps some of you.
Woozo