How to connect 2nd monitor to iMac 2020 without usb-c?

My iMac 2020 reboots when 2nd monitor is connected via USB-c. I've been through apple support so many times! I gave my iMac to Apple Genius etc. Nobody at Apple is willing to admit that iMac has a malfunction. I've been struggling with it for over 8 months and I know for a fact that it reboots only when I connect any 2nd monitor! Apple thinks I should go to the monitor's manufacturer or to Adobe (since I use Photoshop). I know that this monitor works great with other computers and it's not the only monitor I tried with my iMac. But only my iMac reboots. So support essentially is useless for me and I have to deal with it by myself. So I wonder is there any other way I can use a second monitor apart from connecting it via USB-c? Is it possible to use a Bluetooth dongle to my second monitor? Are there any other ways? Here is one of the crash logs: panic(cpu 1 caller 0xfffffff023abfa08): x86 CPU CATERR detected Debugger message: panic Memory ID: 0x6 OS release type: User OS version: 18P4663 macOS version: 20F71 Kernel version: Darwin Kernel Version 20.5.0: Fri May 7 22:04:14 PDT 2021; root:xnu-7195.121.3~8/RELEASE_ARM64_T8010 Kernel UUID: 7A04D40F-4E77-350D-B90A-DBD2A19DB08D iBoot version: iBoot-6723.120.36 secure boot?: YES x86 EFI Boot State: 0xe x86 System State: 0x0 x86 Power State: 0x0 x86 Shutdown Cause: 0x1 x86 Previous Power Transitions: 0x20002000200 PCIeUp link state: 0x94721614 Paniclog version: 13 Kernel slide: 0x000000001bbb4000 Kernel text base: 0xfffffff022bb8000 mach_absolute_time: 0x2cbaf4d2c7c Epoch Time: sec usec Boot : 0x60c31b28 0x0002c451 Sleep : 0x60c7a3e2 0x00085b10 Wake : 0x60c7a41b 0x000479aa Calendar: 0x60c7cbe6 0x000caebf Panicked task 0xffffffe199ffc630: 2882 pages, 189 threads: pid 0: kernel_task Panicked thread: 0xffffffe19a0f2c00, backtrace: 0xffffffe804713700, tid: 365 lr: 0xfffffff0232b349c fp: 0xffffffe804713750 lr: 0xfffffff0232b32f4 fp: 0xffffffe8047137c0 lr: 0xfffffff0233dedf0 fp: 0xffffffe804713890 lr: 0xfffffff0238d95fc fp: 0xffffffe8047138a0 lr: 0xfffffff0232b3028 fp: 0xffffffe804713c20 lr: 0xfffffff0232b3028 fp: 0xffffffe804713c80 lr: 0xfffffff02421b200 fp: 0xffffffe804713ca0 lr: 0xfffffff023abfa08 fp: 0xffffffe804713cd0 lr: 0xfffffff023aadd98 fp: 0xffffffe804713d30 lr: 0xfffffff023aafc94 fp: 0xffffffe804713dc0 lr: 0xfffffff023aad43c fp: 0xffffffe804713e50 lr: 0xfffffff0239b20fc fp: 0xffffffe804713e80 lr: 0xfffffff02382e010 fp: 0xffffffe804713ec0 lr: 0xfffffff02382d890 fp: 0xffffffe804713f00 lr: 0xfffffff0238e45a0 fp: 0x0000000000000000