Keep in mind that preview 1 still has some preview specific issues. Specifically the new input system doesn’t seem to be working with projects converted from older engine versions (openXR manifest generation always fails) and skeletal meshes don’t actually weld when attached currently (welded body driver and general hand attachment is effected).
Without seeming to be impatient (my apologies if I do)… could you give an update on the above issues, as 5.1 came out of preview today? You’re right that I should be waiting for a hotfix, but there are some new features that I would really like to get my hands on (nanite, anyone? :)).