I used it to integrate sketching into a web-based diagram editor ~10 years ago and it was a breeze. OK, I had to train it myself. But it takes only minutes to draw all the shape variants needed. In practice I used 6 shapes and about 5 variants per shape. I conducted a usability test and the $1 recognizer only failed to recognizes the sketches 2-3 times out of ~300 shapes drawn by different users with no additional training.
I'm on 0.11, too.
OS crashes are rare ~2 time, maybe. It's minor things, embedded qr-scanner fails, AntennaPod crashes and needs a restart, some Apps like eBay just crash...
But checking the apps I got from /e/'s-Store: They are up-to-date :)
I'm a FP3 and /e/ user for about half a year now. And well, it works for me but frankly there are some issues. Nothing I'm not willing to take, but it's different to the premium android device with google services before.
The Appstore provides some apps. But not all of them and some are quite outdated. They seem to get their APKs from https://info.cleanapk.org/. Some apps just don't work or stop reacting to touches. But this can be an Issue with the missing Google Services.
The FP3 is a decent phone. It does its job well images are ok (old camera) focus and stabilization are not as good as flagship phones. The fingerprint reader is pretty unreliable. It usually needs some tries...
However, its repairable, the price is fair for what you get, they try to be sustainable, there is /e/-os and lineage available. That's the main reason I bought it: I expect to use it as long as I want and not only as log as the manufacturer publishes the patches.
OSM is really awesome in (western) Europe. I use it all the time. All new bike trails are in it. Even the trees in down town are in it.
It is even great for car navigation. I used the map data to navigate in tiny beach villages in Spain, for a round trip in Iceland and on several other occasions in western Europe. However, i only relied on the data and let my Garmin device create the routes.
Well, they seem to have some opensourced some of their code. But they are far away form being free software although they claim to use the GPL.
If I can't build the software myself, I won't use it.
Flash is not installed, so there is no need to block.
For Adblocking I use Bluhell Firewall, to stop tracking Ghostery and Self-destructing cookies. On top of that I run noScript to kill remaining junk.
And because I like to encrypt: HttpsEverywhere.