Will those games support this controller?

8Bitdo SN30 Pro Wireless Bluetooth Controller (Hall Effect Joystick Update) with Joysticks Rumble Vibration USB-C Cable Gamepad Compatible with Switch/Switch 2,Windows, Mac OS, Android, Steam (Crystal Purple)

Unless Gog added controller support configuration sense I last tried .. No they won't support em .. but I haven't tried sense they was added to the preservation program closest I tried was seeing if MK3 finally worked''out of the box'' without that odd wonky very sort time to select someone factor that was going on and thankfully that is no longer a problem .. thus works fine that way now

Edit just tried em now they have controller supportI can say and thats me using a wired 8bitdo controller

Since that GOG release uses Dosbox, have you instead tried to run those games with Dosbox Staging instead?

https://www.dosbox-staging.org/#feature-highlights

https://www.dosbox-staging.org/getting-started/introduction/

https://github.com/dosbox-staging/dosbox-staging/wiki/Frequently-asked-questions#where-is-the-config-file

https://github.com/dosbox-staging/dosbox-staging/wiki/Joysticks#dosbox-staging-config-settings

Staging's joystick support is better.

Thats one way to add controller/joystick support but thats done by the user .. and not everyone has the time or know how to set up that kind of thing.. Thus its usually best to assume when one asks about ''does X game support controller/joystick'' they often are asking ''out of the box'' as in no extra steps aside from maybe selecting the open in game after installing a game purpose.. As thats generaly how these questions go

I have a Logitech F710 controller and it works fine with these games.

The one caveat is that these games were only designed for up to a 4 button controller in mind and that defaults to two kick buttons, One Punch Button, and a block button.

You can also do 2 button controller and a joystick/keyboard hybrid setup.

This helped me:
https://support.gog.com/hc/en-us/articles/213040105-Mortal-Kombat-1-Setting-up-a-controller-in-DOSBox-games-even-if-the-game-doesn-t-support-a-joystick

My other post:
https://www.gog.com/forum/mortal_kombat/gamepad_problems_dpad_moving_by_itself_with_mortal_kombat_1/post13