Always had trouble with Nextcloud but ever since deploying it on NixOS it's been rock solid. Both performance and reliability.
alwayssitting
joined 2 weeks ago
Personally I would go for ZFS with the SSD as a L2ARC. But among the options you listed I would do BTRFS RAID1 if you're only gonna use two HDDs, and mdadm RAID5 with BTRFS on top if using three.
There is a flatpak but it's not published to flathub https://github.com/SoftFever/OrcaSlicer/tree/main/flatpak
Try changing to another upstream DNS server in Adguard (such as https://dns.cloudflare.com/dns-query) and see if the problem gets resolved?