I use fossify phone too and that happens whenever I hit the home button during a call. The phone app doesn’t show up in the notification bar nor in the task list. Pretty annoying. I’ve tried some alternatives but from what I can tell they come with their own, even more glaring issues.
Pirated for things you consume, legit for things you love
I just keep a Windows partition on my PCs for those few occasions where I need it. Usually about a tenth of the drive. For most stuff you can mess around with a vm or wine too but this way is easier imo. And realistically Windows 10 will be fine to use for the forseeable future. It’s still possible to use XP securely even today.
Have you met Hanako at Embers though
It’s Oblivion, that’s really all you can hope for no matter your setup