Do you think that your are completely invisible and untraceable in this online world while using incognito mode, then you may be wrong because there are several other reasons which decide that you are untraceable or not.
In some cases where you don't want to save your footprints while using browser, then you are left with only one option that is incognito mode.
While you don't want anyone to know about what you have done while using others device or while browsing in any public computer you may use this incognito mode.
Yes, browser doesn't save any browsing data while you're in incognito mode, this may be helpful for most of them.
But don't think that if you're in incognito mode no one can track what you are doing in the browser, because your not connected to any VPN ( Virtual Private Network) server rather connected directly to an ISP (Internet Service Provider) ,so if they need to know your browsing data it's not a big issue for them to track your search data.
If you have noticed that it says “ your activity might still be visible” as soon as you open incognito mode, we generally ignore this or haven't noticed this yet.
This clearly says that your activities are still visible even you use incognito mode in some cases.
There are different scenarios which decide whether you are completely trackable or partially trackable.
It all depends on which type of sites you are visiting while in incognito mode.
If you're visiting sites which are unsecured and having only http or not even that, then you can be easily monitored by ISP’s.
They can know what site you are visiting, what type of content you are watching and what activity you are doing, etc.,
But in case of https security then you are untraceable for some extinct because all packets are encrypted end to end, any one cannot trace these packets.
In simple words you are sending and receiving packets directly from the main server.
But your ISP can know that, from where to where the packets are going and coming, in other words from which ip address to which ip address. They can also know how many times you have visited or how much time you have spent etc.
If you want really to be untraceable then you should better use a VPN server, just don't depend on this incognito mode.