sorry for the long text :l

i was trying to install /e/ os on my moto g30, and i was doing it on my linux mint laptop. however, for some reason, everytime i tried to connect the phone to the laptop, it would display a message, something like "cannot connect to *** (think it was something like "MTG"?)", however even thougth that message was spamming, i was able to do basically everything: unlock bootload, take the code to be able to really unlock it with motorola itself, "install" the OS (it even went all the way to the /e/ os custom recovery mode screen), however, when installing the .img files for good, it gave me some message like "cannot identify signature"(??), but even with that, it still went all the way to 100% install. however when i reboot it, it went back to the motorola welcome screen. tried to look it up, and the "mtg" error was something with the usb port. tried switching and still nothing. tried to find a solution but didnt found. so i went to my pc wich is dual booted with windows. in there, i downloaded the adb and fastboot programs, and it was recognizing the device. however, it was late at night, so i went to bed and turned pc off. today, when i tried again, the adb and fastboot commands simply does not recognize the device anymore. and i cant do anything. now i only have a "secure mode"(or something like that, dont remember) /e/ os screen, qnd the normal motorola android bs. did i brick the phone? can i delete everything (both /e/ os and motorola android) and staet again from scratch? what would be the best solution for this problem?

i dont live in the USA, so buying a degoogled phone is basically not viable. and i dont have enought money to buy another phone. only have the g30 and my main one, a samsung galaxy s20fe. however i saw that basically there isnt a custom rom for the samsung, and am too afraid to do it and brick my phone (like with prob just happenned with my moto g30). any help/ advice? :l