Afinity Publisher is a good, affordable and a solid replacement for InDesign, at the price of MS Publisher.

We switched away from Creative Suite during one of the many “Adobe overstepping” debacles and haven’t looked back. Publisher 2 has felt like a drop in replacement for most documents/posters/newsletters/flyers etc.

I’m suggesting Afinity publisher because if you’re using ms publisher you don’t have qualms with closed source software and probably value some of the workflow niceties that come with commercially supported software.

Ran WireGuard on a Pi1 and it was fine for two users. Albeit WireGuard was the ONLY thing running aside from a Gitlab Runner.

A 4b should be more than enough for many use cases except things that cause torrents of packets - but even then YMMV. It really depends on the workload.

One bit of advice: if you can, use a storage device other than the micro-sd slot for the 4B. Again YMMV.