How is Bazzite these days for gaming? I mostly use my steam deck these days and my desktop still has windows but I’m always interested if I should make that swap

Correct but all data is local and there are self host sync options

I’d consider the automations/dashboards you’ve made. Those likely could be reused if you wiped the main instance and started over. I’d lean towards making a backup and starting from scratch. If it’s too much, just use the backup!