So, in your case (tailscale) as far I know is a VPN (tunnel), you have less hops but it's not the same as a clearnet only node without any hop in the middle.
Your node => Tor => Tor => Tor => Other node Your node => VPN => Other node Your node => Other node
In a competition to "find" the best path between two nodes, less (network) hops are good.
So, in your case (tailscale) as far I know is a VPN (tunnel), you have less hops but it's not the same as a clearnet only node without any hop in the middle.
Your node => Tor => Tor => Tor => Other node
Your node => VPN => Other node
Your node => Other node
In a competition to "find" the best path between two nodes, less (network) hops are good.