Suggestions for Linux-friendly BLE dongle?

mine says

[ 9058.109616] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ 9058.111717] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 9058.111736] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 9058.112034] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 9058.112217] Bluetooth: hci0: RTL: cfg_sz 6, total sz 28410
[ 9058.382728] Bluetooth: hci0: RTL: fw version 0xdcc6b3a8

and some Amazon reviews from your link say it is based on rtl8761bu, check this https://www.reddit.com/r/linuxhardware/comments/ynjvkx/bluetooth_53_linux_support/

I just copied rtl8761b_mp_chip_bt40_fw_asic_rom_patch_new to /lib/firmware/rtl_bt/rtl8761bu_fw.bin as is.