Angular: Await method do not execute the route.navigate() present inside the setTimeout?

I faced a weird issue when I am integrating a async routing above the await method. If I remove the await method, I can see the routing id working as expected. Below I am giving the code sample.

async deleteApplication() {
        const confirm = await this._prompt.showDelteConfirm(this.application.name);
        if (confirm) {
            // Block 1 start
            setTimeout(async () => {
                try {
                    await this._router.navigate(['/tenant']);
                    console.log('redirected.');
                } catch (error) {
                    console.error('Error navigating within tenant:', error);
                }
            }, 5000);
            // Block 1 end

            // BLock 2 start
            const {result} = await this._applicationService.delete();
            if (result === 'Success') {
                await this._projectSpaces.request();
                await this._router.navigate(['/tenant']);
            }
            // BLock 2 end
        }
    }

I suppose to redirect to a new route after few seconds (i.e after 5sec) as soon as after the delete() service started.
If block 1 and Block 2 execute at a time, When await methods start executing then the routing method present inside the block 1 is not executing.
Don’t understand this kind of weird issue.

I need your thought on this.