Ark Mts all engrams unlockable?

I have a question about the MTS servers in Ark, I think ark has become pay2win and nothing is possible without extinction (cryo engrams, …). I played ark on ps4 with all DLC and now want to switch to PC. Ark will be available free of charge in the epic games store on June 4th and I wanted to ask if mts can unlock all engrams without switching to extinction or if I should buy the explorer edition on steam.

I ordered with a pc and am waiting for it and want to buy ark. I buy the Explorer Edition because I only have the normal TI on the ps4 and it gets boring in the long run. I think the Explorer Edition is not SO expensive and therefore it is worth it in my opinion.