It is important to know what legitimate notifications from your device’s operating system look like…
These are legitimate notifications (not scams) but it is important to keep in mind that our devices are all as dumb as a box of rocks.
This being the case, some research 🧐 and/or getting some good help may in order as your device may not have enough “under the hood” (e.g. memory and storage space) to adequately accommodate a new operating system.