There is an open issue for this over at the android issue tracker. https://issuetracker.google.com/issues/37104657
Interestingly all the Swedes I work with have their own solutions to the tilde problem. Some type the alt code while others use alternative keyboard configurations.
But I understand the frustration, I feel the same every time you boot up a new system or VM and it defaults to american layout, changing the keyboard layout from a unix prompt when you can't find i.e. - / : = is surprisingly hard.
I used to use svorak a5 about 10 years ago but eventually switched back to swedish qwerty since it was causing such confusion with coworkers.
I also switch to a right-handed mouse about 4-5 years ago for the same reason with the addition that ergonomic left handed mice are pretty much non-existent, it's mainly just standard two button mice which you flip the mouse buttons on.