Hide icalnavs

Two ways:
1) use a listtype that is close to what you want (eg : listtype 4 is fairly lean)
OR

2) As per https://icalevents.com/support/documentation/shortcodes/#parameters

you can add parameters to the shortcodes to override the default settings of a listtype. So to hide ‘pagination’
[events pagination=0] or [iCal pagination=0]

you may also find these useful:
show_month_nav=0
show_views=0
headings=0

These posts may also be helpful (still valid):
https://icalevents.com/4046-google-indexing-bandwidth-and-calendar-parameters/
https://icalevents.com/4073-google-indexation-pagination/
https://icalevents.com/1868-pagination/