Try Diarium, it stores it’s data in your choice of cloud sync, Dropbox, Google Drive etc rather than a cloud run by the program.

There’s loads of options, for your writing, tags, photod, even hooks up to Strava if your do sportd, etc, it’s a one time payment so no abonnement.

Before I had tried others, this is the best around, especially as it keeps your data private.

Yes I agree, it also syncs to Dropbox, syncs very fast. works very well in Linux, Android phones

For the second question, you can use for example duckdns.org it’s free and it works well