Since Sept, 2021, IRCC has only invited provincial nominee candidates for express entry, including yesterday, April 13, 2022, excluding all other skilled worker classes. It is certainly a challenged time for all the skilled workers waiting for their chance to become permanent resident in Canada.
Read more at https://www.canada.ca/en/immigration-refugees-citizenship/services/immigrate-canada/express-entry/submit-profile/rounds-invitations.html