Although new to this community (returning to tf2 after 10 years with lockdown in my country) I want to say I wish you all the strength in dealing with this. While I don't know you, I felt compelled to post having dealt with similar accusations I was investigating (and later accused of covering up and being involved when I found zero evidence) in a different game community. Everything I've seen here echoes of the same baseless malice I investigated and eventually with which was targeted.
I know how much it helps knowing you are not alone! From a stranger (likely) in a foreign land, stay strong, stay resilient and all the best!!!