NAS for data storage and (later survaillance)

[Enquiries]

Hello gents,

I need your input to come to a desicion for my next NAS.
Current situation:
1 drive in myold Netgear 2 Bay NAS starts to fail the SMART check and storage is @75-80%

Needs:
- Disk station with Raid1 (2x 4TB)
- Survaillance for 2-3 cameras in about a year on seperate volume
-> min. 3 drives in total (2x disk station, 1x survaillance (no need for raid1))

Options:
- DS423 / DS423+:
pro: 4 bay NAS with DSM7.2 and great survaillance SW
con: limited power due to Celeron J4125, even less on DS423. ok for my usecase?
- DS723+
pro: enough power and 2 bays for the disk station + 1 NVMe for survaillance
con: no graphic unit in the CPU (can the R1600 handle sporadic movie encoding + IP camera handling sufficiently?)

- QNAP TS-264-8G
pro: powerful CPU incl. graphics unit, 2 bays + NVMe
con: QTS + not so intuitive survaillance SW

-DS223j & DS224+
pro: 4 bays in total, each device can "focus on one task",
4 camera licences in total
con: 2 devices + price

Please advice