Sure, just stating what OP mentioned.
Strit
OP stated that a VM is not feasable because of ressources on the PC.
I'm afraid they have to install Windows again, if work is not able to provide a device for this function. I have not heard of any solution for reliable iTunes functionality on Linux. :(
SyncThing? It has no centralized point and syncs with devices when they are online.
Imagine the feeling when “you just click the .exe and everything installs itself” works for everyone but you. It doesn’t matter that downloading executables from random websites is way worse than a proper package manager in pretty much every way.
If this is your aim, you can't really do that with Linux. Better stick with Windows in this case, as that's the only place where this works.
Don't most blog software provide rss feeds?
I know Ghost does, by just adding /rss to the link in question. So you can link to the whole blog, specific tags or even specific posts this way.
Link to the company page? I can't find anything on jellyfin page that mentions that they are a company.
Nextcloud might be overkill, but it does have all those features and more. It's literally made for organizations to keep track of contacts, documents, tasks, kanban like boards, notes and lots of other stuff.
They are not a company. Why would they want to "make a living" from it?
No, I sync my bookmars via Firefox Sync, so I haven't had the need for it.
I tried Rcognize on my Nextcloud install, but appearently I have too few photos fot it to matter. It never started any clustering. Not even from the CLI commands. Had it running for about 6 months, then uninstalled it again as I was getting no real use from it.
LibeOffice Writer opens pdf's just fine. Just save it as odt afterwards. Probably can't do complex pdf's this way, but in that case you shouldn't really convert the pdf anyway as it will almost always loose some of the formatting or layout in the process.