[General Questions and Answers] AudreyQ:
FIXED! If anyone has this problem, they can check this...

What I did:

So I knew that play store was at fault for me, causing the brick.

1: I used this program: https://xdaforums.com/t/tool-tool-a...ck-twrp-factory-image-stock-recovery.3358711/

1.1: Set it to OP5T device type in TAIO (the tool all in one), since we are in a very limited mode without being able to upload files to the phone we need twrp to do this for us.

1.2: Click Recovery flasher and device rooter

1.3: Set it to TWRP 3.2.1 Universal OP5T (maybe other versions don't work? Try them)

1.3: Uncheck all checkboxes and click only the following checkboxes:

1.4: Check "Automatic TWRP MD5 check", "ONLY boot it"

1.5: Click Flash and wait

2: In TWRP, I sent via PC USB directly to the phone the gApps file I needed (https://opengapps.org/)

(Select arm64 pico (for OP5T) I had android sdk 27 (V8.1 rom) because I had installed it on top of android 10 rom I had, so I downloaded it for sdk 27, if you dont know which rom version you have right now or you can't check because of the brick, just download gApps for android 10 and run it on twrp, in the logs it will tell you it can't install because your rom is has a different version, telling you the version of your phone)

2.2: Ran it until it was successful (android version missmatch in my case)

2.3: Ok so your playstore is reinstalled fully and all essentials, so let's now grab a full latest OTA from official oneplus website

2.4: Send it to the Phone like you did for gApps (Better use a /ROOTTOOLS folder or something in the root of the device, easier for me)

2.5: You can't seem to run the OTA on TWRP, so go back to normal recovery (if you dont have stock recovery, get one for oneplus 5t online and fastboot flash it into recovery just like twrp)

3: Now that you have the OTA on ROOTTOOLS and are inside the custom stock recovery, run the full OTA and wait.

3.1: If everything goes right just reboot your phone and see if it's unbricked, all data and app data should still be intact! (It might take around more than 10 minutes on the booting animation of the red and white balls, if the device doesn't go to recovery, doesn't reboot, doesn't do anything but this, leave it be for atleast 1 hour, put your faith in it)

4: TADA UNBRICKED! Kiss your phone like I did, while it loads the enviroment.

4.1: Now go back to fastboot in your phone, go back to your computer, open TAIO (the tool all in one) and root your device again

4.2: Click Recovery flasher and device rooter

4.3: Uncheck all checkboxes and click the following: "Automatic TWRP MD5 Check", "and boot it", "root after boot", select your magisk version you want (I got a md5 error saying it couldn't be checked, but dammit we already come this far, I think its a bug)

4.4: Click Flash and Root and wait

4.5: You will be in TWRP, wait for the magisk zip to install automatically

4.6: Reboot the phone

5: Use Phone and kiss it and get covid from the screen surface... (jkjk, dont do that, kinda afraid now ngl)

Happy girl after bricking her phone, because she removed playstore like a rootnewb...

(vader dancing)

...well this only took like... 7 hours to discover...

And I am supposed to be working...

Cya later, I gotta go.

(Mr.Incredible working)