If you have any doubt, I would call Continental. They're not as quick about informing investors unlike Computershare is for GME. I was worried, too, when I first registered my shares with them, as I never heard if my shares were secured, either. Also as a heads up, any voting that needs to be done with those shares (like the merger) will have materials sent via snail mail, too. I still have shares with my broker, and I always get proxy material first via email. Continental will send out the material, but it might be a couple weeks after the voting window has opened.
If you previously had DWAC shares DRS'd with Continental, the shares automatically get transferred into your Odyssey account, which was created for you. To access this new Odyssey account for the first time, you will receive instructions in the mail and have to call them to get your default password for your new account.
If you did not previously have a Continental account, but have now initiated a process to DRS your DJT shares from your broker, the new Odyssey account will automatically be created by Odyssey.
If you have any doubt or worry about where your shares are after initiating the DRS process you can always call the transfer agent (Odyssey). Odyssey was very helpful for me.