It started to happen in all my world's and friends world's after 1.14.60 Hotfix. When a player teleoports, loads into world or loads after death it freezes all players in the game. This could be intense and frequent when you have up to 5 players in your game. It seems to happen when the player loads a new chunk when teleported or logging into world. Here is a 3minute clip of freezing when teloported https://youtu.be/CNcQ1jXDhgA