I've seen a few examples of this and of people forwarding the domain to their Twitter feed - mainly those who are holding Web3, Crypto and future tech domains...
If you are involved in the same space as the domain/s and posting interesting stuff about it then it can't hurt I suppose - if you are doing this as a side hustle and have domains in loads of niches then I don't think it would work - my main job has nothing to with any of my domains, so my LinkedIn profile would be irrelevant and potentially confusing to a potential buyer - or they would just low ball me, assuming I don't "need" the domain....
I think it would only work if you have good quality domains - forwarding crap to your profile/s might have a negative impact on how people perceive you, especially if you are trying to position yourself as a thought leader in any particular niche that you are working in.....
Also I prefer not to add side hustles to my LinkedIn profile and I don't use Twitter.......so for me it would not be appropriate....