@Lovisa - Unfortunately you cannot turn this off. A little known--or new--feature at the time that Miro made this navigation changes is that you can long-hold you mouse button to start the “precise” select mode, which only includes an object if you cover 90+% of an object. Honestly, Miro should have made this the default behaviour and let people choose if they wanted to do an “select anything I touch” mode by doing a long press.

Here is a note about this in the How to select and move multiple objects help center article:

To start a precise selection that only includes an object if it covers 90%+ of its surface, long click/press and drag. This is helpful if you need to select objects on top of another background shape.

Selecting multiple stickies on top of a shape with precise selection tool

And the post where I first learned about this long-holdfeature:

https://community.miro.com/ask-the-community-45/is-anyone-else-struggling-with-the-changes-to-the-select-functionality-6788?postid=28803#post28803

You are a life saver- sure I still have the time sinkhole since it needs a long click... but this atleast takes away “the unselect all the extra, after select” im doing now. Thank you! <3

But yes I wish you could atleast switch these features in settings or chose your own keybind for them.

Its funny since its a vital part on how we, in my team, use miro and its killing us. :(

Another example of how miro developers must not actually use miro….