In KDE you can access this sort of thing with the built-in GUI file manager right out of the box. You don't need a third-party app.

1. Open Dolphin (file manager)

2. Right click in the Places section on the left to add entry

3. Type `fish://<the-address>`

4. Click OK

https://www.dedoimedo.com/computers/plasma-dolphin-fish-ssh....