Jubilee Indulgence

Pope Francis stated in his February 2022 letter announcing the Jubilee 2025:

"We must fan the flame of hope that has been given us and help everyone to gain new strength and certainty by looking to the future with an open spirit, a trusting heart and far-sighted vision. The forthcoming Jubilee can contribute greatly to restoring a climate of hope and trust as a prelude to the renewal and rebirth that we so urgently desire..."

From the Decree:

“the indulgence is a way of discovering the unlimited nature of God’s mercy. Not by chance, for the ancients, the terms ‘mercy’ and ‘indulgence’ were interchangeable, as expressions of the fullness of God’s forgiveness, which knows no bounds” (Spes non confundit, 23).

The Indulgence, therefore, is a Jubilee grace.

What else can I know about Indulgences and how can I obtain this grace for myself and others during the Jubilee Year 2025?