If you want to mod, I can heartily recommend ThunderStore.

It will allow you to browse 1500+ mods directly from the app, it will allow you to install, configure, en- or disable, update, or uninstall every mod they offer. ThunderStore will resolve dependencies, and will tell you if a mod has an update available for it.

You can also add mods manually to the ThunderStore interface.

ThunderStore and mods are kept totally separate from Valheim, thus allowing the mod manager to start the game vanilla in case of problems related to mods.

I can only highly recommend it.