I sent this to my priest and he said he privately observed the Octave of Pentecost, but thought that it would be a great idea to observe it as a congregation next year. Yes!
You might want to remind your parish priest as Advent approaches.. I’m pretty sure that’s when they start planning the upcoming church year. Can’t hurt in any case.
IMHO, a lot of what the RCC was for decades/centuries was lost with that Vatican II .. I guess they were trying to get ‘hip’ with the 20th century.