Only with others on the exact same version. The multiplayer backend requires matching update versions. As 1.0.3 is outdated, matchmaking will likely fail unless using LAN play (which DOOM Switch supports) with friends on the same patch.
To understand why remains relevant, you must look at the numbers. Digital Foundry’s original analysis of DOOM Switch used the launch patch. Here’s how 1.0.3 stacked up: DOOM -NSP Update 1.0.3-
First, let’s decode the terminology.
Mod support gets a big boost in this patch. You can now in the Mod Browser. They’ve also extended Boom and MBF21 compatibility , meaning a much wider range of community-made WADs will now run smoothly on your Switch. Only with others on the exact same version