If you work from home rather than in the office, you can essentially do it anywhere in the world. It doesn't matter for business whether you sit down at your laptop in Belarus or somewhere in Europe.
But people who work for a company in their home country from another country technically fall into a gray area of the law. Because you can't work abroad with a tourist visa, and on the other hand, a work visa is issued only to work for a local organization. Remote jobs for digital nomad are always posted here https://citizenremote.com/digital-nomad-jobs/
Legal vacuum for remote employees is filled by digital nomad visa - it officially allows a Belarusian freelancer to work, for example, for a Belarusian office, but to do it from the European Union. In addition, it helps to stay abroad noticeably longer than a simple tourist visa.
Therefore, digital nomad visas are suitable for remote workers who want to live abroad for some time (for example, a year), but do not look for a new job in the country where they temporarily entered.
How does a digital nomad visa differ from a Schengen or work visa?
A traditional work visa allows you to get a job in local companies and stay in the country for a long time, but binds you to the state of the employer. And the work visa is also difficult to obtain: most often you will need a contract with a local company and/or a letter of invitation.
Standard tourist Schengen visa allows foreigners to travel (but not work!) in Schengen countries for no more than 90 days within six months from the date of entry without the right to work in local companies. Getting a "Schengen" is easy enough.
Of course, if you came to the country as a tourist, but brought a working laptop, no one can prohibit you from working. So if the "digital nomads" are not going to stay in one country for more than three months, many people prefer the usual tourist visas.
But if you want to live in the country longer than the simple tourist visa allows, and also going to work remotely and not ready to settle in a local company, the digital nomad visa will help.
On average, with a digital nomad visa you can live abroad for about a year, and before the local law you get the official status of a remote worker. At the same time such a visa is relatively easy to arrange: like a tourist visa, it does not require a long collection of documents and an employment contract concluded with the local.
In what countries can I get a digital nomad visa?
As we learned, specifically digital nomad visa issued in Estonia. However, some other countries have either similar visas or other visa programs that will also be suitable for digital nomads. To learn the conditions of digital nomad visa in each country study detailed article from CitizenRemote https://citizenremote.com/blog/digital-nomad-visa-countries/
If your country of interest does not yet have a digital nomad visa, do not despair: perhaps a suitable program will appear there soon. The fact is that it is profitable for states to attract foreign nomads: while such a person lives there, he rents a house, buys things and goes to local establishments, i.e. invests money earned in other countries in the local economy.