Team Xecuter released a video and confirmed that Xecuter SX Pro /SX OS works fine on Switch 5.1.0 with running games and homebrew. From the video, you can find the general steps of using Xecuter SX Pro /SX OS on switch console.
The content of the video is as follows.
1. Stay your switch console power off. Connect the USB dongle to the Switch’s USB type-C port and attach the jig to the Switch’s right-hand side Joycon rail.
2. start the RCM mode by simultaneously pressing the power button + volume button
3. SX logo is displayed, then SX menu is displayed
4. Remove USB dongle and jig. Insert right Joycon to console
5. tap the option “boot custom FW” on the menu
6. The switch is booted into CFW
7. Switch games in real-time
8. Activate games
