You can change your Reading progress setting under Display settings from your Settings page.
If you turn off the "Save reading progress" option, your reading progress will no longer be saved, and will not be displayed in the list of works you've browsed.
You will no longer be redirected to the line you last read when you open the work. *This feature is not yet available on the pixiv app.
<Desktop version Settings page Display settings>
<Mobile version Settings page Display settings>Related articles: